Jump to content
Main menu Navigation ●Main page ●Contents ●Current events ●Random article ●About Wikipedia ●Contact us ●Donate Contribute ●Help ●Learn to edit ●Community portal ●Recent changes ●Upload file
●Create account ●Log in ●Create account ● Log in Pages for logged out editors learn more ●Contributions ●Talk
View source for United States Army

●Article ●Talk ●Read ●View source ●View history Tools Actions ●Read ●View source ●View history General ●What links here ●Related changes ●Upload file ●Special pages ●Page information ●Get shortened URL ●Download QR code ●Wikidata item Appearance ← United States Army You do not have permission to edit this page, for the following reason:
This page is currently semi-protected so that only established, registered users can edit it.
Why is the page protected?

While most articles can be edited by anyone, semi-protection is sometimes necessary to prevent vandalism to popular pages.
The reason for protection can be found in the protection log. If there are no relevant entries in the protection log, the page may have been moved after being protected.
What can I do?

If you have a user account, log in first. If you do not yet have an account, you may create one; after 4 days and 10 edits, you will be able to edit semi-protected pages.
Discuss this page with others.
For move-protected pages, see requested moves.
Request that the page's protection level be reduced.
Find out more about how to get started editing Wikipedia.
If you have noticed an error or have a suggestion for a simple, non-controversial change, you can submit an edit request by clicking the button below and following the instructions. An established user may then make the change on your behalf. Please check the talk page first in case the issue is already being discussed.
Submit an edit request
If you wrote any text, please save it temporarily to your device until you can edit this page.
You can view and copy the source of this page:
{{Short description|Land service branch of the U.S. military}}
{{Distinguish|United States Department of the Army|United States Armed Forces|Army of the United States|Army National Guard}}
{{Pp|small=yes}}
{{Use American English|date=February 2019}}
{{Use dmy dates|date=November 2022}}<!-- Date format as in U.S. military date format per [[MOS:MILFORMAT]]. -->
{{Infobox military unit
| unit_name                     = United States Army
| image                         = [[File:Military service mark of the United States Army.svg|frameless]] <br />Official seal of the United States Army<ref>{{cite web|url=http://www.defense.gov/Portals/1/Documents/Trademarks/DOD%20Guide%20about%20use%20of%20seals%20logos%20insignia%20medals-16%20Oct%2015F.PDF|archive-url=https://web.archive.org/web/20160405154729/http://www.defense.gov/Portals/1/Documents/Trademarks/DOD%20Guide%20about%20use%20of%20seals%20logos%20insignia%20medals-16%20Oct%2015F.PDF|url-status=dead|archive-date=5 April 2016|title=Important Information and Guidelines About the Use of Department of Defense Seals, Logos, Insignia, and Service Medals|date=16 October 2015|page=2|access-date=5 April 2016|publisher=United States Department of Defense}}</ref> <br />[[File:Logo of the United States Army 2023.svg|frameless|upright=1.00]] <br />Wordmark<ref>{{cite web |work=US Army |url=https://www.army.mil/article/264594/new_army_brand_redefines_be_all_you_can_be_for_a_new_generation |date=8 March 2023 |title=New Army brand redefines 'Be All You Can Be' for a new generation }}</ref>
| start_date                    = {{start date|1775|06|14|df=yes}}{{Efn|As the [[Continental Army]].}} <br />({{Age in years and months|1775|06|14}} ago)<ref>{{cite book|last=Wright, Jr.|first=Robert K.|title=The Continental Army (Army Lineage Series)|year=1983|publisher=Center of Military History, United States Army|location=Washington, D.C.|isbn=9780160019319|url=http://www.history.army.mil/books/RevWar/ContArmy/CA-fm.htm|oclc=8806011|access-date=30 October 2013|archive-date=9 October 2019|archive-url=https://web.archive.org/web/20191009065615/https://history.army.mil/books/RevWar/ContArmy/CA-fm.htm|url-status=dead}}</ref><ref>{{cite web |last=Maass |first=John R. |url=http://www.history.army.mil/html/faq/birth.html|title=June 14th: The Birthday of the U.S. Army|publisher=U.S. Army Center of Military History|access-date=30 October 2013|archive-date=1 October 2018|archive-url=https://web.archive.org/web/20181001214256/https://history.army.mil/html/faq/birth.html|url-status=dead}}</ref>
| dates                         = 14 June 1775–1783 (as [[Continental Army]]) <br /> 1792–1796 as [[Legion of the United States]] <br />  1796–present as United States Army
| country                       = {{Flagu|United States}}
| type                          = [[Army]]
| role                          = 
| size                          = {{ubl|452,689 active duty personnel<ref>{{cite web |title=Defense Manpower Data Center- Monthly Strength Summary |url=https://dwp.dmdc.osd.mil/dwp/api/download?fileName=ms0_2307.pdf&groupName=milTop |work=[[Defense Manpower Data Center]] |access-date=14 September 2023 }}</ref> | 325,218 Army National Guard personnel | 176,968 Army Reserve personnel<ref>{{cite web |url=https://dwp.dmdc.osd.mil/dwp/api/download?fileName=DRS_42486_SelRes_202307.pdf&groupName=resRankGrade |title=Department of Defense: Selected Reserves by Rank/Grade |date=July 31, 2023 |work=[[Defense Manpower Data Center]] |access-date=14 September 2023 }}</ref> | 1,073,200 total uniformed personnel (official data as of July 31, 2023) | 330,000 civilian personnel<ref>{{cite web|url=https://www.goarmy.com/careers-and-jobs/find-your-path/army-civilians.html|title=Army Civilians|website=goarmy.com|access-date=16 June 2023}}</ref> | 4,406 crewed aircraft<ref name="WAF2018">{{cite journal |title=World Air Forces 2018 |journal=Flightglobal |page=17 |url=https://www.flightglobal.com/asset/21905 |access-date=13 June 2018}}</ref> }}
| command_structure             = [[United States Armed Forces]] <br />[[United States Department of the Army|Department of the Army]]
| garrison                      = [[The Pentagon]] <br />{{nowrap|[[Arlington County, Virginia]], U.S.}}
| garrison_label                = Headquarters
| motto                         = "This We'll Defend"
| colors                        = Black, gold and white<ref>{{cite book |title=U.S. Future Combat & Weapon Systems Handbook |first=Ibp |last=Usa |page=15}}</ref><ref>{{cite book |title=U.S. Army Brand Guide |url=https://www.army.mil/aemo#org-army-brand |access-date=3 Nov 2022}}</ref> <br />{{color box|#030000}}&nbsp;{{color box|#FFD530}}&nbsp;{{color box|#FFFFFF}}
| colors_label                  = Colors
| march                         = "[[The Army Goes Rolling Along]]" {{audio|Army goes rolling along.ogg|Play}}
| mascot                        = [[Army Mules]]
| equipment                     = [[List of equipment of the United States Army|List of U.S. Army equipment]]
| battles                       = {{collapsible list
| titlestyle = background:transparent;text-align:left;font-weight:normal;
| title = See list
|[[File:Streamer RW.PNG|200px]] <br />[[American Revolutionary War|Revolutionary War]] <br />[[File:Streamer W1812.PNG|200px]] <br />[[War of 1812]] <br />[[File:Streamer MW.PNG|200px]] <br />[[Mexican–American War]] <br />[[File:Streamer CW.PNG|200px]] <br />[[American Civil War|Civil War]] <br />[[File:Streamer IW.PNG|200px]] <br />[[American Indian Wars|Indian Wars]] <br />[[File:Streamer SC.PNG|200px]] <br />[[Spanish–American War]] <br />[[File:Streamer CRE.PNG|200px]] <br />[[China Relief Expedition]] <br />[[File:Streamer PC.PNG|200px]] <br />[[Philippine–American War]] <br />[[File:Streamer MS.PNG|200px]] <br />[[Mexican Expedition]] <br />[[File:Streamer WWI V.PNG|200px]] <br />[[World War I]] <br />[[Allied intervention in the Russian Civil War|Russian Civil War]] <br />[[Bonus Army suppression]] <br />[[File:World War II - American Campaign Streamer (Plain).png|200px]] <br />[[File:Streamer APC.PNG|200px]] <br />[[File:European-African-Middle Eastern Campaign Medal streamer.png|200px]] <br />[[World War II]] <br />[[File:Korean Service Medal - Streamer.png|200px]] <br />[[Korean War]] <br />[[1958 Lebanon crisis]] <br />[[File:Vietnam Service Streamer vector.svg|200px]] <br />[[Vietnam War]] <br />[[File:Streamer AFE.PNG|200px]] <br />[[Dominican Civil War]] <br />[[File:Streamer AFE.PNG|200px]] <br />[[Korean DMZ Conflict (1966–1969)|Korean DMZ Conflict]] <br />[[File:Streamer AFE.PNG|200px]] <br />[[US invasion of Grenada|Invasion of Grenada]] <br />[[File:Streamer AFE.PNG|200px]]|[[United States Invasion of Panama|Invasion of Panama]] <br />[[File:Streamer AFE.PNG|200px]] <br />[[Unified Task Force|Somali Civil War]] <br />[[File:Streamer SAS.PNG|200px]] <br />[[Gulf War|Persian Gulf War]] <br />[[File:Streamer KC.PNG|200px]] <br />[[Kosovo War]] <br />[[File:Streamer gwotE.PNG|200px]] <br />[[Global War on Terrorism]] <br />[[File:Streamer AFGCS.PNG|200px]] <br />[[War in Afghanistan (2001–2021)|War in Afghanistan]] <br />[[File:Iraq Campaign streamer.svg|200px]] <br />[[Iraq War]] <br />[[File:Inherent Resolve Campaign streamer.svg|200px]] [[Operation Inherent Resolve]]<ref>{{Cite web |url=http://quicksearch.dla.mil/qsDocDetails.aspx?ident_number=70415 |title=ASSIST-QuickSearch Document Details |access-date=6 February 2018 |archive-url=https://web.archive.org/web/20180207122448/http://quicksearch.dla.mil/qsDocDetails.aspx?ident_number=70415 |archive-date=7 February 2018 |url-status=dead}}</ref> <br />[[Battle of Khasham]]
}}
| anniversaries                 = [[U.S. Army Birthdays|Army Birthday]]: 14 June<ref>{{cite web|url=https://history.army.mil/html/faq/birth.html|title=June 14th: The Birthday of the U.S. Army|website=U.S. Army Center of Military History|access-date=February 17, 2024}}</ref>
| website                       = {{ubl|{{URL|www.army.mil|army.mil}}|{{URL|www.goarmy.com|goarmy.com}}}}
<!-- Commanders -->| commander1                    = {{Flagicon image|Flag of the President of the United States.svg|size=25px}} [[President of the United States|President]] [[Joe Biden]]
| commander1_label              = [[Powers of the president of the United States#Commander-in-chief|Commander-in-Chief]]
| commander2                    = {{Flagicon image|Flag of the United States Secretary of Defense.svg|size=25px}} [[Lloyd Austin]]
| commander2_label              = [[United States Secretary of Defense|Secretary of Defense]]
| commander3                    = {{Flagicon image|Flag of the United States Secretary of the Army.svg|size=25px}} [[Christine Wormuth]]
| commander3_label              = [[United States Secretary of the Army|Secretary of the Army]]
| commander4                    = {{Flagicon image|Flag of the Chief of Staff of the United States Army.svg|size=25px}} [[General (United States)|GEN]] [[Randy A. George]]
| commander4_label              = [[Chief of Staff of the United States Army|Chief of Staff]]
| commander5                    = {{Flagicon image|Flag of the Vice Chief of Staff of the United States Army.svg|size=25px}} [[General (United States)|GEN]] [[James J. Mingus]]
| commander5_label              = [[Vice Chief of Staff of the United States Army|Vice Chief of Staff]]
| commander6                    = {{Flagicon image|Flag of the Sergeant Major of the United States Army.svg|size=25px}} [[Sergeant Major of the Army|SMA]] [[Michael R. Weimer]]<ref>{{cite web|url=https://www.dvidshub.net/webcast/32423|title=Webcast: Relinquishment of Responsibility for GEN James McConville / Change of Responsibility SMA Michael Grinston|access-date=2023-07-28|website=DVIDS}}</ref>
| commander6_label              = [[Sergeant Major of the Army]]
| notable_commanders            = <!-- Insignia -->
| identification_symbol         = [[File:Flag of the United States Army (official proportions).svg|border|150px]]
| identification_symbol_label   = [[Flag of the United States Army|Flag]]
| identification_symbol_2       = [[File:Field flag of the United States Army.svg|border|150px]]
| identification_symbol_2_label = Field flag{{Efn|Adopted in 1962.}}
}}
{{United States Armed Forces sidebar}}

The '''United States Army''' ('''USA''') is the [[Land warfare|land service]] branch of the [[United States Armed Forces]]. It is one of the eight [[Uniformed services of the United States|U.S. uniformed services]], and is designated as the Army of the United States in the [[United States Constitution|U.S. Constitution]].<ref name=Constitution>Article II, section 2, clause 1 of the [[United States Constitution]] (1789). <br />See also [https://www.gpo.gov/fdsys/pkg/USCODE-2010-title10/html/USCODE-2010-title10-subtitleB-partI-chap301-sec3001.htm Title 10, Subtitle B, Chapter 301, Section 3001].</ref> The Army is the oldest branch of the U.S. military and the most senior in order of precedence.<ref>{{cite web|title=Department of Defense Directive 1005.8 |date=31 October 1977|quotation=Subject: "Order of Precedence of Members of Armed Forces of the United States When in Formation" (Paragraph 3. PRESCRIBED PROCEDURE) |url=https://permanent.access.gpo.gov/websites/dodandmilitaryejournals/www.dtic.mil/whs/directives/corres/html2/d10058x.htm|website=Permanent.access.gpo.gov|access-date=7 July 2017}}</ref> It has its roots in the [[Continental Army]], which was formed on 14 June 1775 to fight against the British for independence during the [[American Revolutionary War]] (1775–1783).<ref name="Army_birth"/> After the Revolutionary War, the [[Congress of the Confederation]] created the United States Army on 3 June 1784 to replace the disbanded Continental Army.<ref name="Army_LOC">Library of Congress, [http://memory.loc.gov/cgi-bin/ampage?collId=lljc&fileName=027/lljc027.db&recNum=166&itemLink=r%3Fammem%2Fhlaw%3A@field%28DOCID%2B@lit%28jc0271%29%29%230270001&linkText=1 Journals of the Continental Congress, Volume 27]</ref><ref name=Army_History>{{cite web |date=15 November 2004 |title=Army Birthdays |publisher=[[United States Army Center of Military History]] |url=http://www.history.army.mil/faq/branches.htm |access-date=3 June 2010<!--based on date of introduction; see oldid=365887842--> |archive-url=https://web.archive.org/web/20100420124819/http://www.history.army.mil/faq/branches.htm |archive-date=20 April 2010}}</ref> The United States Army considers itself a continuation of the Continental Army, and thus considers its institutional inception to be the origin of that armed force in 1775.<ref name="Army_birth">{{cite web |publisher= [[United States Army Center of Military History]] |url=http://www.history.army.mil/html/faq/birth.html |title=14 June: The Birthday of the U.S. Army |access-date=1 July 2011 |archive-date=1 October 2018 |archive-url=https://web.archive.org/web/20181001214256/https://history.army.mil/html/faq/birth.html |url-status=dead}} an excerpt from Robert Wright, ''The Continental Army''</ref>

The U.S. Army is a [[uniformed services of the United States|uniformed service of the United States]] and is part of the [[United States Department of the Army|Department of the Army]], which is one of the three military departments of the [[United States Department of Defense|Department of Defense]]. The U.S. Army is headed by a civilian senior appointed civil servant, the [[United States Secretary of the Army|secretary of the Army]] (SECARMY), and by a chief [[military officer]], the [[Chief of Staff of the United States Army|chief of staff of the Army]] (CSA) who is also a member of the [[Joint Chiefs of Staff]]. It is the largest military branch, and in the [[Fiscal year#United States|fiscal year]] 2022, the projected end strength for the [[Regular Army (United States)|Regular Army]] (USA) was 480,893 soldiers; the [[Army National Guard]] (ARNG) had 336,129 soldiers and the [[United States Army Reserve|U.S. Army Reserve]] (USAR) had 188,703 soldiers; the combined-component strength of the U.S. Army was 1,005,725 soldiers.<ref>{{Cite journal |last=Cancian |first=Mark F. |date=2021-10-21 |title=U.S. Military Forces in FY 2022: Army |url=https://www.csis.org/analysis/us-military-forces-fy-2022-army |journal=CSIS |language=en}}</ref> As a branch of the armed forces, the mission of the U.S. Army is "to fight and win our Nation's wars, by providing prompt, sustained land dominance, across the full range of military operations and the spectrum of conflict, in support of [[combatant commander]]s".<ref>{{cite web|url=http://www.army.mil/info/organization/|title=The United States Army – Organization|work= army.mil|access-date=1 April 2015}}</ref> The branch participates in conflicts worldwide and is the major ground-based offensive and defensive force of the United States of America.‌

==Mission==
The United States Army serves as the land-based branch of the [[United States Armed Forces|U.S. Armed Forces]]. [https://www.law.cornell.edu/uscode/text/10/7062 Section 7062 of Title 10, U.S. Code] defines the purpose of the army as:<ref>DA Pamphlet 10–1 ''Organization of the United States Army''; Figure 1.2 ''Military Operations''.</ref><ref>{{cite web|title=10 USC 3062: Policy; composition; organized peace establishment|url=http://uscodebeta.house.gov/view.xhtml?req=granuleid:USC-prelim-title10-section3062&num=0&edition=prelim|publisher=U.S. House of Representatives|access-date=21 August 2013|url-status=dead|archive-url=https://web.archive.org/web/20131005010612/http://uscodebeta.house.gov/view.xhtml?req=granuleid:USC-prelim-title10-section3062&num=0&edition=prelim|archive-date=5 October 2013}}</ref>
* Preserving the peace and security and providing for the defense of the United States, the Commonwealths and possessions, and any areas occupied by the United States
* Supporting the national policies
* Implementing the national objectives
* Overcoming any nations responsible for aggressive acts that imperil the peace and security of the United States

In 2018, the ''Army Strategy 2018'' articulated an eight-point addendum to the Army Vision for 2028.<ref name=Strategy2018>[https://www.army.mil/e2/downloads/rv7/the_army_strategy_2018.pdf The Army Strategy] 2018</ref> While the Army Mission remains constant, the Army Strategy builds upon the Army's [[Brigade Modernization Command|Brigade Modernization]] by adding focus to [[corps]] and [[Division (military)|division]]-level echelons.<ref name=Strategy2018 /> The [[Army Futures Command]] oversees reforms geared toward [[conventional warfare]]. The Army's current [[Reorganization plan of United States Army|reorganization plan]] is due to be completed by 2028.<ref name=Strategy2018 />

The Army's five core competencies are prompt and sustained land combat, [[combined arms]] operations (to include combined arms maneuver and wide–area security, [[armored forces|armored]] and [[mechanized infantry|mechanized operations]] and [[airborne forces|airborne]] and [[air assault infantry|air assault operations]]), [[special operations forces]], to set and sustain the theater for the joint force, and to integrate national, multinational, and joint power on land.<ref>{{Cite web|url=https://armypubs.army.mil/epubs/DR_pubs/DR_a/pdf/web/ARN18008_ADP-1%20FINAL%20WEB.pdf|title= Army Publishing Directorate}}</ref>

==History==
{{main|History of the United States Army}}

===Origins===
The Continental Army was created on 14 June 1775 by the [[Second Continental Congress]]<ref>[http://memory.loc.gov/cgi-bin/query/r?ammem/hlaw:@field(DOCID+@lit(jc00235)): Cont'l Cong., Formation of the Continental Army, in 2 ''Journals of the Continental Congress, 1774–1789'' 89–90 (Library of Cong. eds., 1905)].</ref> as a unified army for the colonies to fight [[Kingdom of Great Britain|Great Britain]], with [[George Washington]] appointed as its commander.<ref name="Army_birth"/><ref>[http://memory.loc.gov/cgi-bin/query/r?ammem/hlaw:@field(DOCID+@lit(jc00238)): Cont'l Cong., Commission for General Washington, in 2 ''Journals of the Continental Congress, 1774–1789'' 96–7 (Library of Cong. eds., 1905)].</ref><ref>[http://memory.loc.gov/cgi-bin/query/r?ammem/hlaw:@field(DOCID+@lit(jc00240)): Cont'l Cong., Instructions for General Washington, in 2 ''Journals of the Continental Congress, 1774–1789'' 100–1 (Library of Cong. eds., 1905)].</ref><ref>[http://memory.loc.gov/cgi-bin/query/r?ammem/hlaw:@field(DOCID+@lit(jc00580)): Cont'l Cong., Resolution Changing "United Colonies" to "United States", in 5 ''Journals of the Continental Congress, 1774–1789'' 747 (Library of Cong. eds., 1905)].</ref> The army was initially led by men who had served in the [[British Army]] or colonial militias and who brought much of British military heritage with them. As the Revolutionary War progressed, [[Early Modern France|French]] aid, resources, and military thinking helped shape the new army. A number of European soldiers came on their own to help, such as [[Friedrich Wilhelm von Steuben]], who taught [[Prussian Army]] tactics and organizational skills.

[[File:Bataille Yorktown.jpg|thumb|left|The storming of Redoubt No. 10 in the [[Siege of Yorktown]] during the [[American Revolutionary War]] prompted Great Britain's government to begin negotiations, resulting in the [[Treaty of Paris (1783)|Treaty of Paris]] and Great Britain's recognition of the United States as an independent state.]]
The Army fought numerous pitched battles, and sometimes used [[Fabian strategy]] and [[hit-and-run tactics]] in the South in 1780 and 1781; under Major General [[Nathanael Greene]], it hit where the British were weakest to wear down their forces. Washington led victories against the British at [[Battle of Trenton|Trenton]] and [[Battle of Princeton|Princeton]], but lost a series of battles in the [[New York and New Jersey campaign]] in 1776 and the [[Philadelphia campaign]] in 1777. With a decisive victory at [[siege of Yorktown|Yorktown]] and the help of the French, the Continental Army prevailed against the British.

After the war, the Continental Army was quickly given land certificates and disbanded in a reflection of the [[Republicanism in the United States|republican]] distrust of standing armies. [[US state|State]] militias became the new nation's sole ground army, except [[First American Regiment|a regiment]] to guard the [[Northwest Territory|Western Frontier]] and one battery of [[artillery]] guarding [[West Point]]'s arsenal. However, because of continuing conflict with [[Native Americans in the United States|Native Americans]], it was soon considered necessary to field a trained standing army. The [[Regular Army (United States)|Regular Army]] was at first very small and after General [[St. Clair's defeat]] at the Battle of the Wabash,<ref name=Buffenbarger>{{cite web |first=Thomas E. |last=Buffenbarger |publisher=U.S. Army Heritage and Education Center |title=St. Clair's Campaign of 1791: A Defeat in the Wilderness That Helped Forge Today's U.S. Army |date=15 September 2011 |url=http://www.army.mil/article/65594}}</ref> where more than 800 soldiers were killed, the Regular Army was reorganized as the [[Legion of the United States]], established in 1791 and renamed the United States Army in 1796.

In 1798, during the [[Quasi-War]] with France, the [[U.S. Congress]] established a three-year "[[Provisional Army of the United States|Provisional Army]]" of 10,000 men, consisting of twelve [[regiment]]s of [[infantry]] and six troops of light [[dragoon]]s. In March 1799, Congress created an "Eventual Army" of 30,000 men, including three regiments of [[cavalry]]. Both "armies" existed only on paper, but equipment for 3,000 men and horses was procured and stored.<ref>Gregory J.W.Urwin, ''The United States Cavalry: An Illustrated History, 1776–1944'', University of Oklahoma Press 2003 (1983), pp. 36—39</ref>

===19th century===

====War of 1812 and Indian Wars====
{{further|War of 1812|Army on the Frontier}}
[[File:Battle of New Orleans.jpg|thumb|right|General [[Andrew Jackson]] standing on the parapet of his makeshift defenses as his troops repulse attacking [[93rd (Sutherland Highlanders) Regiment of Foot|Highlanders]] during the [[Battle of New Orleans|defense of New Orleans]], the final major and most one-sided battle of the [[War of 1812]], mainly fought by militia and volunteers.]]

The [[War of 1812]], the second and last war between the United States and Great Britain, had mixed results.  The U.S. Army did not conquer Canada but it did destroy Native American resistance to expansion in the [[Old Northwest]] and it validated its independence by stopping two major British invasions in 1814 and 1815. After [[Battle of Lake Erie|taking control of Lake Erie]] in 1813, the U.S. Army seized parts of western Upper Canada, [[Battle of York|burned York]] and [[Battle of the Thames|defeated Tecumseh]], which caused his [[Western Confederacy]] to collapse. Following U.S. victories in the Canadian province of Upper Canada, British troops who had dubbed the U.S. Army "Regulars, by God!", were able to capture and [[Burning of Washington|burn Washington]], which was defended by militia, in 1814. The regular army, however, proved they were professional and capable of defeating the British army during the [[Battle of Plattsburgh|invasions of Plattsburgh]] and [[Battle of Baltimore|Baltimore]], prompting British agreement on the previously rejected terms of a [[status quo]] antebellum.{{dubious|date=August 2023}} Two weeks after a treaty was signed (but not ratified), [[Andrew Jackson]] defeated the British in the [[Battle of New Orleans]] and [[Siege of Fort St. Philip (1815)|siege of Fort St. Philip]] with an army dominated by militia and volunteers, and became a national hero. U.S. troops and sailors [[Capture of HMS Cyane and HMS Levant|captured HMS Cyane]], [[Capture of HMS Cyane and HMS Levant|Levant]] and [[Capture of HMS Cyane and HMS Levant|Penguin]] in the final engagements of the war. Per the treaty, both sides (the United States and Great Britain) returned to the geographical status quo. Both navies kept the warships they had seized during the conflict.

The army's major campaign against the Indians was fought in [[Florida]] against [[Seminole]]s. It took long wars (1818–1858) to finally defeat the Seminoles and move them to Oklahoma. The usual strategy in Indian wars was to seize control of the Indians' winter food supply, but that was no use in Florida where there was no winter. The second strategy was to form alliances with other Indian tribes, but that too was useless because the Seminoles had destroyed all the other Indians when they entered Florida in the late eighteenth century.<ref>Ron Field and Richard Hook, ''The Seminole Wars 1818–58'' (2009)</ref>

The U.S. Army fought and won the [[Mexican–American War]] (1846–1848), which was a defining event for both countries.<ref>{{cite web|url=https://www.pbs.org/kera/usmexicanwar/|title=The U.S.-Mexican War – PBS|work=pbs.org|access-date=1 April 2015}}</ref> The U.S. victory resulted in acquisition of territory that eventually became all or parts of the states of [[California]], [[Nevada]], [[Utah]], [[Colorado]], [[Arizona]], [[Wyoming]] and [[New Mexico]].

====American Civil War====
{{further|Union Army}}
[[File:Thure de Thulstrup - L. Prang and Co. - Battle of Gettysburg - Restoration by Adam Cuerden.jpg|thumb|right|The [[Battle of Gettysburg]], the turning point of the American Civil War]]

The [[American Civil War]] was the costliest war for the U.S. in terms of casualties. After most [[slave state]]s, located in the southern U.S., formed the [[Confederate States of America|Confederate States]], the [[Confederate States Army]], led by former U.S. Army officers, mobilized a large fraction of Southern white manpower. Forces of the United States (the "Union" or "the North") formed the [[Union Army]], consisting of a small body of regular army units and a large body of volunteer units raised from every state, north and south, except [[South Carolina]].<ref>{{cite web|last1=Tinkler|first1=Robert|title=Southern Unionists in the Civil War|url=http://www.csuchico.edu/inside/current-issue/bigpicture-1.shtml|work=csuchico.edu/|access-date=21 November 2016}}</ref>

For the first two years, Confederate forces did well in set battles but lost control of the border states.<ref>McPherson, James M., ed. ''The Atlas of the Civil War'', (Philadelphia, PA, 2010)</ref> The Confederates had the advantage of defending a large territory in an area where disease caused twice as many deaths as combat. The Union pursued a strategy of seizing the coastline, blockading the ports, and taking control of the river systems. By 1863, the Confederacy was being strangled. Its eastern armies fought well, but the western armies were defeated one after another until the Union forces captured New Orleans in 1862 along with the Tennessee River.  In the [[Vicksburg Campaign]] of 1862–1863, General [[Ulysses Grant]] seized the [[Mississippi River]] and cut off the Southwest.  Grant took command of Union forces in 1864 and after a series of battles with very heavy casualties, he had General [[Robert E. Lee]] under siege in Richmond as General [[William T. Sherman]] captured Atlanta and [[Sherman's March to the Sea|marched through Georgia]] and [[the Carolinas]].  The Confederate capital was abandoned in April 1865 and Lee subsequently surrendered his army at Appomattox Court House. All other Confederate armies surrendered within a few months.

The war remains the deadliest conflict in U.S. history, resulting in the deaths of 620,000 men on both sides. Based on 1860 census figures, 8% of all white males aged 13 to 43 died in the war, including 6.4% in [[Northern United States|the North]] and 18% in [[Southern United States|the South]].<ref>Maris Vinovskis (1990). ''[https://books.google.com/books?id=gySktxKYPGoC&pg=PA7 Toward a social history of the American Civil War: exploratory essays]{{Dead link|date=January 2023 |bot=InternetArchiveBot |fix-attempted=yes }}''. Cambridge University Press. p. 7. {{ISBN|0-521-39559-3}}</ref>

====Later 19th century====
[[File:Soldiers of 1890.jpg|thumb|right|Army soldiers in 1890]]

Following the Civil War, the U.S. Army had the mission of containing western tribes of Native Americans on the [[Indian reservation]]s. They set up many forts, and engaged in the last of the [[American Indian Wars]]. U.S. Army troops also occupied several Southern states during the [[Reconstruction Era]] to protect [[freedmen]].

The key battles of the [[Spanish–American War]] of 1898 were fought by the Navy. Using mostly [[United States Volunteers|new volunteers]], the U.S. forces defeated [[Spain]] in land campaigns in [[Cuba]] and played the central role in the [[Philippine–American War]].

===20th century===
Starting in 1910, the army began acquiring [[fixed-wing aircraft]].<ref>Cragg, Dan, ed., ''The Guide to Military Installations'', Stackpole Books, Harrisburg, 1983, p. 272.</ref> In 1910, during the [[Mexican Revolution]], the army was deployed to U.S. towns near the border to ensure the safety of lives and property. In 1916, [[Pancho Villa]], a major rebel leader, attacked [[Columbus, New Mexico]], prompting a [[Pancho Villa Expedition|U.S. intervention in Mexico]] until 7 February 1917. They fought the rebels and the Mexican federal troops until 1918.

====World Wars====
{{Hatnote|For a list of campaigns see [[List of United States Army campaigns during World War II]]}}
[[File:At close grips2.jpg|thumb|right|U.S. Army troops assaulting a German bunker in [[France]], {{circa|1918}}]]

[[File:Us army world war 1 johnstown pennsylvania common history.jpg|thumb|U.S. Army unit before heading to France during World War I]]
The [[American entry into World War I|United States joined World War I]] as an "Associated Power" in 1917 on the side of [[United Kingdom of Great Britain and Ireland|Britain]], [[French Third Republic|France]], [[Russian Empire|Russia]], [[Kingdom of Italy|Italy]] and the other [[Allies of World War I|Allies]]. U.S. troops were sent to the [[Western Front (World War I)|Western Front]] and were involved in the last offensives that ended the war. With the armistice in November 1918, the army once again decreased its forces.

In 1939, estimates of the Army's strength ranged between 174,000 and 200,000 soldiers, smaller than that of [[Portugal]]'s, which ranked it 17th or 19th in the world in size. General [[George C. Marshall]] became Army chief of staff in September 1939 and set about expanding and modernizing the Army in preparation for war.<ref>{{Cite news|url=http://www.politifact.com/texas/statements/2014/jun/13/ken-paxton/us-army-was-smaller-army-portugal-world-war-ii/|title=U.S. army was smaller than the army for Portugal before World War II|work=Politifact|access-date=23 January 2018}}</ref><ref>{{Cite web|url=http://ssi.armywarcollege.edu/pubs/summary.cfm?q=358|title=Excerpt – General George C. Marshall: Strategic Leadership and the Challenges of Reconstituting the Army, 1939–41|website=Ssi.armywarcollege.edu|access-date=23 January 2018|archive-url=https://web.archive.org/web/20180124005751/http://ssi.armywarcollege.edu/pubs/summary.cfm?q=358|archive-date=24 January 2018|url-status=dead}}</ref>

[[File:U.S. Soldiers at Bougainville (Solomon Islands) March 1944.jpg|thumb|left|U.S. soldiers hunting for Japanese infiltrators during the [[Bougainville Campaign]]]]
The United States joined [[World War II]] in December 1941 after the [[Empire of Japan|Japanese]] [[attack on Pearl Harbor]]. Some 11 million Americans were to serve in various Army operations.<ref name= debruyne>{{citation |url=https://fas.org/sgp/crs/natsec/RL32492.pdf |author=Nese DeBruyne, Congressional Research Service |date=18 September 2018 |title= American War and Military Operations Casualties: Lists and Statistics |at= Page 3, note j — |quote=World War II: 10.42 million (1 December 1941-31 August 1945)}}. Other sources count the Army of Occupation up to 31 December 1946. By 30 June 1947 the Army's strength was down to 990,000 troops.</ref><ref name="amh-v2">{{citation |publisher=[[United States Army Center of Military History]] |chapter-url=https://history.army.mil/books/AMH-V2/AMH%20V2/chapter4.htm |title=American Military History |volume= 2 |chapter=Chapter 4: "GRAND STRATEGY AND THE WASHINGTON HIGH COMMAND"|quote= 10.4 million |page=122}}</ref> On the [[European Theatre of World War II|European front]], U.S. Army troops formed a significant portion of the forces that landed in French North Africa and [[Tunisia campaign|took Tunisia]] and then [[Allied invasion of Sicily|moved on to Sicily]] and later [[Italian Campaign (World War II)|fought in Italy]]. In the June 1944 [[Normandy landings|landings in northern France]] and in the subsequent [[Western Front (World War II)#1944–45: The Second Front|liberation of Europe]] and defeat of [[Nazi Germany]], millions of U.S. Army troops played a central role. In 1947, the number of soldiers in the US Army had decreased from eight million in 1945 to 684,000 soldiers and the total number of active divisions had dropped from 89 to 12. The leaders of the Army saw this demobilization as a success.<ref>{{cite web |title=The Points Were All That Mattered: The US Army's Demobilization After World War II |url=https://www.nationalww2museum.org/war/articles/points-system-us-armys-demobilization#:~:text=The%20US%20Army%20finally%20ended,684%2C000%20on%20July%201%2C%201947. |website=The National WWII Museum New Orleans | date=27 August 2020 |access-date=November 4, 2022}}</ref>
In the [[Pacific War]], U.S. Army soldiers participated alongside the [[United States Marine Corps]] in capturing the [[Pacific Islands]] from Japanese control. Following the [[Axis Powers|Axis]] surrenders in May (Germany) and August (Japan) of 1945, army troops were deployed to Japan and Germany to occupy the two defeated nations. Two years after World War II, the [[Army Air Forces]] separated from the army to become the [[United States Air Force]] in September 1947. In 1948, the army was [[Desegregation in the United States|desegregated]] by [[Executive Order 9981|order 9981]] of President [[Harry S. Truman]].

====Cold War====
=====1945–1960=====
[[File:Exercise Desert Rock I (Buster-Jangle Dog) 003.jpg|thumb|upright|U.S. Army soldiers observing an atomic bomb test of [[Operation Buster-Jangle]] at the [[Nevada Test Site]] during the [[Korean War]]|alt=]]

The end of World War II set the stage for the East–West confrontation known as the [[Cold War]]. With the outbreak of the [[Korean War]], concerns over the defense of Western Europe rose. Two corps, [[V Corps (United States)|V]] and [[VII Corps (United States)|VII]], were reactivated under [[Seventh United States Army]] in 1950 and U.S. strength in Europe rose from one division to four. Hundreds of thousands of U.S. troops remained stationed in West Germany, with others in [[Belgium]], the [[Netherlands]] and the [[United Kingdom]], until the 1990s in anticipation of a possible [[Soviet Union|Soviet]] attack.<ref name=PerkinsAOC>{{cite web|url=https://www.youtube.com/watch?v=-46HlgVPYDQ |archive-url=https://ghostarchive.org/varchive/youtube/20211211/-46HlgVPYDQ |archive-date=11 December 2021 |url-status=live|title=Perkins discusses operationalizing the Army Operating Concept|last=US Army TRADOC|date=16 September 2015|publisher=[[YouTube]]|access-date=2 November 2017}}{{cbignore}}</ref>{{rp|minute 9:00–10:00}}
[[File:US Army tanks face off against Soviet tanks, Berlin 1961.jpg|thumb|right|US tanks and Soviet tanks at Checkpoint Charlie, 1961]]
During the Cold War, U.S. troops and their allies fought [[Communism|communist]] forces in Korea and [[Vietnam]]. The Korean War began in June 1950, when the Soviets walked out of a UN Security Council meeting, removing their possible veto. Under a [[United Nations]] umbrella, hundreds of thousands of U.S. troops fought to prevent the takeover of [[South Korea]] by [[North Korea]] and later to invade the northern nation. After repeated advances and retreats by both sides and the Chinese [[People's Volunteer Army]]'s entry into the war, the [[s:Korean Armistice Agreement|Korean Armistice Agreement]] returned the peninsula to the status quo in July 1953.

=====1960–1970=====
The [[Vietnam War]] is often regarded as a low point for the U.S. Army due to the use of [[The Draft|drafted personnel]], the unpopularity of the war with the U.S. public and frustrating restrictions placed on the military by U.S. political leaders. While U.S. forces had been stationed in [[South Vietnam]] since 1959, in intelligence and advising/training roles, they were not deployed in large numbers until 1965, after the [[Gulf of Tonkin Incident]]. U.S. forces effectively established and maintained control of the "traditional" battlefield, but they struggled to counter the [[guerrilla war|guerrilla]] hit and run tactics of the communist [[National Front for the Liberation of South Vietnam|Viet Cong]] and the [[People's Army of Vietnam|People's Army Of Vietnam (NVA)]].<ref>Woodruff, Mark. ''Unheralded Victory: The Defeat of the Viet Cong and the [[North Vietnamese Army]] 1961–1973'' (Arlington, VA: Vandamere Press, 1999).<!--page#?--></ref><ref>{{Cite web|last=Shidler|first=Derek|title=Vietnam's Changing Historiography: Ngo Dinh Diem and America's Leadership|url=https://www.eiu.edu/historia/Historia2009Shidler.pdf}}</ref>

[[File:DakToVietnam1966.jpg|thumb|left|A U.S. Army infantry patrol moving up to assault the last [[North Vietnamese Army]] position at Dak To, South Vietnam during [[Operation Hawthorne]]]]
During the 1960s, the Department of Defense continued to scrutinize the reserve forces and to question the number of divisions and brigades as well as the redundancy of maintaining two reserve components, the [[Army National Guard]] and the [[United States Army Reserve|Army Reserve]].<ref>Wilson, John B. (1997). ''Maneuver and Firepower: The Evolution of Divisions and Separate Brigades''. Washington, DC: Center of Military History, Chapter XII, for references see Note 48.</ref> In 1967, Secretary of Defense [[Robert McNamara]] decided that 15 combat divisions in the Army National Guard were unnecessary and cut the number to eight divisions (one mechanized infantry, two armored, and five infantry), but increased the number of brigades from seven to 18 (one airborne, one armored, two mechanized infantry and 14 infantry). The loss of the divisions did not sit well with the states. Their objections included the inadequate maneuver element mix for those that remained and the end to the practice of rotating divisional commands among the states that supported them. Under the proposal, the remaining division commanders were to reside in the state of the division base. However, no reduction in total Army National Guard strength was to take place, which convinced the governors to accept the plan. The states reorganized their forces accordingly between 1 December 1967 and 1 May 1968.

=====1970–1990=====
[[File:Operation Just Cause Rangers 3rd sqd la comadancia small.jpg|thumb|right|U.S. Army soldiers preparing to take ''La Comandancia'' in the El Chorrillo neighborhood of [[Panama City]] during [[United States invasion of Panama|Operation Just Cause]]]]

The Total Force Policy was adopted by Chief of Staff of the Army General [[Creighton Abrams]] in the aftermath of the Vietnam War and involved treating the three components of the army – the [[Regular Army (United States)|Regular Army]], the [[Army National Guard]] and the [[United States Army Reserve|Army Reserve]] as a single force.<ref name="Army National Guard Constitution">{{cite web|url=http://www.arng.army.mil/aboutus/history/Pages/ConstitutionalCharteroftheGuard.aspx |title=Army National Guard Constitution |url-status=dead |archive-url=https://web.archive.org/web/20130521130934/http://www.arng.army.mil/aboutus/history/Pages/ConstitutionalCharteroftheGuard.aspx |archive-date=21 May 2013}}</ref> General Abrams' intertwining of the three components of the army effectively made extended operations impossible without the involvement of both the Army National Guard and Army Reserve in a predominantly combat support role.<ref>Carafano, James, [http://www.fpri.org/enotes/20050203.military.carofano.totalforcepolicyabramsdoctrine.html ''Total Force Policy and the Abrams Doctrine: Unfulfilled Promise, Uncertain Future''] {{webarchive|url=https://web.archive.org/web/20100410064613/http://www.fpri.org///enotes/20050203.military.carofano.totalforcepolicyabramsdoctrine.html |date=10 April 2010}}, Foreign Policy Research Institute, 3 February 2005.</ref>  The army converted to an all-volunteer force with greater emphasis on training to specific performance standards driven by the reforms of General [[William E. DePuy]], the first commander of [[United States Army Training and Doctrine Command]]. Following the Camp David Accords that was signed by Egypt, Israel that was brokered by president [[Jimmy Carter]] in 1978, as part of the agreement, both the United States and [[Egypt]] agreed that there would be a joint military training led by both countries that would usually take place every 2 years, that exercise is known as [[Exercise Bright Star]].

The 1980s was mostly a decade of reorganization. The [[Goldwater-Nichols Act]] of 1986 created [[Unified Combatant Command|unified combatant commands]] bringing the army together with the other four [[United States Military|military services]] under unified, geographically organized command structures. The army also played a role in the invasions of [[Grenada]] in 1983 ([[Invasion of Grenada|Operation Urgent Fury]]) and [[Panama]] in 1989 ([[Operation Just Cause]]).

By 1989 [[German reunification|Germany was nearing reunification]] and the Cold War was coming to a close. Army leadership reacted by starting to plan for a reduction in strength. By November 1989 Pentagon briefers were laying out plans to reduce army end strength by 23%, from 750,000 to 580,000.<ref>An Army at War: Change in the Midst of Conflict, p. 515, via [[Google Books]]</ref> A number of incentives such as early retirement were used.

====1990s====
[[File:Abrams in formation.jpg|thumb|left|[[M1 Abrams]] tanks moving out before the [[Battle of Al Busayyah]] during the [[Gulf War]]]]

In 1990, [[Iraq]] [[Invasion of Kuwait|invaded]] its smaller neighbor, [[Kuwait]], and U.S. land forces quickly deployed to assure the protection of [[Saudi Arabia]]. In January 1991 [[Operation Desert Storm]] commenced, a U.S.-led coalition which deployed over 500,000 troops, the bulk of them from U.S. Army formations, to [[Gulf War|drive out Iraqi forces]]. The campaign ended in total victory, as Western coalition forces routed the [[Iraqi Army]]. Some of the largest tank battles in history were fought during the Gulf war. The [[Battle of Medina Ridge]], [[Battle of Norfolk]] and the [[Battle of 73 Easting]] were tank battles of historical significance.<ref>{{cite web|url=http://www.militaryeducation.org/10-most-epic-tank-battles-in-military-history/|title=10 Most Epic Tank Battles in Military History|website=Militaryeducation.org|access-date=2 November 2017|archive-url=https://web.archive.org/web/20171113173424/http://www.militaryeducation.org/10-most-epic-tank-battles-in-military-history/|archive-date=13 November 2017|url-status=dead}}</ref><ref>VUA Citation</ref><ref>{{cite web|url=http://www.wearethemighty.com/articles/6-massive-tank-battles-from-us-history|title=These were the 6 most massive tank battles in US history|date=24 March 2016|website=Wearethemighty.com|access-date=2 November 2017}}</ref>

[[File:Destroyed Iraqi tank TF-41.jpg|thumb|right|Iraqi tanks destroyed by [[Task Force 1-41 Infantry]] during the Gulf War, February 1991]]
After Operation Desert Storm, the army did not see major combat operations for the remainder of the 1990s but did participate in a number of peacekeeping activities. In 1990 the Department of Defense issued guidance for "rebalancing" after a review of the Total Force Policy,<ref>[http://oai.dtic.mil/oai/oai?verb=getRecord&metadataPrefix=html&identifier=ADA235382 Section 1101, National Defense Authorization Act for Fiscal Years 1990 and 1991] {{Webarchive|url=https://web.archive.org/web/20110429005041/http://oai.dtic.mil/oai/oai?verb=getRecord&metadataPrefix=html&identifier=ADA235382 |date=29 April 2011}}, Department of Defense Interim Report to Congress, September 1990 (see "[[Rebalancing (investment)|rebalancing]]" as used in finance.)</ref> but in 2004, [[USAF Air War College]] scholars concluded the guidance would reverse the Total Force Policy which is an "essential ingredient to the successful application of military force".<ref>Downey, Chris, [http://oai.dtic.mil/oai/oai?verb=getRecord&metadataPrefix=html&identifier=ADA424059 ''The Total Force Policy and Effective Force''] {{Webarchive|url=https://web.archive.org/web/20110429005034/http://oai.dtic.mil/oai/oai?verb=getRecord&metadataPrefix=html&identifier=ADA424059 |date=29 April 2011}}, Air War College, 19 March 2004.</ref>

===21st century===
[[File:Flickr - DVIDSHUB - Operation in Nahr-e Saraj (Image 5 of 7).jpg|thumb|right|U.S. Army Rangers taking part in a raid during an operation in Nahr-e Saraj, Afghanistan]]

On 11 September 2001, 53 Army civilians (47 employees and six contractors) and 22 soldiers were among the 125 victims killed in [[Casualties of the September 11 attacks#Pentagon|the Pentagon]] in a [[terrorism|terrorist attack]] when [[American Airlines Flight 77]] commandeered by five [[Al-Qaeda]] [[aircraft hijacking|hijackers]] slammed into the western side of the building, as part of the [[September 11 attacks]].<ref>{{cite web|url=http://www.patriotresource.com/wtc/victims/pentagon.html|title=September 11, 2001 Pentagon Victims|work=patriotresource.com|access-date=13 November 2015}}</ref> In response to the 11 September attacks and as part of the [[War on Terror|Global War on Terror]], U.S. and [[NATO]] forces [[War in Afghanistan (2001–2021)|invaded Afghanistan]] in October 2001, displacing the [[Taliban]] government. The U.S. Army also led the combined U.S. and allied [[2003 invasion of Iraq|invasion of Iraq]] in 2003; it served as the primary source for ground forces with its ability to sustain short and long-term deployment operations. In the following years, the mission changed from conflict between regular militaries to [[counterinsurgency]], resulting in the deaths of more than 4,000 U.S. service members (as of March 2008) and injuries to thousands more.<ref>{{Cite journal |last1=Burnham |first1=Gilbert |last2=Lafta |first2=Riyadh |last3=Doocy |first3=Shannon |last4=Roberts |first4=Les |date=12 October 2006 |title=Mortality after the 2003 invasion of Iraq: a cross-sectional cluster sample survey |url=|journal=The Lancet |language=en |volume=368 |issue=9545 |pages=1421–1428 |citeseerx=10.1.1.88.4036 |doi=10.1016/S0140-6736(<span class="ltr">06</span>)69491-9 |pmid=17055943 |s2cid=23673934}}</ref><ref name="Lancet supplement">{{cite web|url=http://web.mit.edu/CIS/pdf/Human_Cost_of_War.pdf|title=The Human Cost of the War in Iraq: A Mortality Study, 2002–2006}}&nbsp;{{small|(603&nbsp;KB)}}. By Gilbert Burnham, Shannon Doocy, Elizabeth Dzeng, Riyadh Lafta, and Les Roberts. A supplement to the second ''Lancet'' study.</ref> 23,813 insurgents were killed in Iraq between 2003 and 2011.<ref>597 killed in 2003, [https://www.usatoday.com/news/world/iraq/2007-09-26-insurgents_N.htm], 23,984 killed from 2004 through 2009 (with the exceptions of May 2004 and March 2009), [https://www.theguardian.com/world/2010/oct/22/true-civilian-body-count-iraq] 652 killed in May 2004, [http://www.iraqbodycount.org/analysis/numbers/warlogs/] 45 killed in March 2009, [http://www.reliefweb.int/rw/rwb.nsf/db900sid/CJAL-7QPQB7?OpenDocument] {{Webarchive|url=https://web.archive.org/web/20090903190008/http://www.reliefweb.int/rw/rwb.nsf/db900sid/CJAL-7QPQB7?OpenDocument |date=3 September 2009 }} 676 killed in 2010, [https://www.bloomberg.com/news/2010-12-30/iraq-civilian-deaths-drop-for-third-year-as-toll-eases-after-u-s-drawdown.html] 451 killed in 2011 (with the exception of February), [http://news.theage.com.au/breaking-news-world/jan-iraq-death-toll-highest-in-four-months-20110201-1ac9m.html] [http://www.upi.com/Top_News/World-News/2011/04/03/Two-US-troops-killed-in-Iraq/UPI-84151301845983/] [http://www.spacewar.com/reports/Iraq_monthly_death_toll_falls_in_April_999.html] [http://www.middle-east-online.com/english/?id=46442] {{Webarchive|url=https://web.archive.org/web/20150209184820/http://www.middle-east-online.com/english/?id=46442 |date=9 February 2015 }} [http://www.thedailynewsegypt.com/death-toll-spikes-for-iraqis-us-troops.html] {{Webarchive|url=https://web.archive.org/web/20120111145441/http://www.thedailynewsegypt.com/death-toll-spikes-for-iraqis-us-troops.html |date=11 January 2012 }} [http://arabia.msn.com/news/middleeast/afp/2011/august/7991554.aspx] {{Webarchive|url=http://web.archive.bibalex.org/web/20111208174352/http://arabia.msn.com/news/middleeast/afp/2011/august/7991554.aspx |date=8 December 2011 }}{{cite web |title=239 people killed in Iraq in August and killed by the U.S. Military |url=http://www.nenosplace.com/showthread.php?45792-239-people-killed-in-Iraq-in-August-and-killed-by-the-U.S.-military |url-status=dead |archive-url=https://web.archive.org/web/20120112042255/http://www.nenosplace.com/showthread.php?45792-239-people-killed-in-Iraq-in-August-and-killed-by-the-U.S.-military |archive-date=12 January 2012 |access-date=22 October 2011 }} {{cite web |title=Gulf Times – Qatar's top-selling English daily newspaper – Gulf/Arab World |url=http://gulf-times.com/site/topics/article.asp?cu_no%3D2%26item_no%3D461485%26version%3D1%26template_id%3D37%26parent_id%3D17 |url-status=dead |archive-url=https://web.archive.org/web/20111002182259/http://www.gulf-times.com/site/topics/article.asp?cu_no=2&item_no=461485&version=1&template_id=37&parent_id=17 |archive-date=2 October 2011 |access-date=15 October 2011 }} {{cite web |title=Iraq death toll up sharply in October |url=https://montrealgazette.com/news/Iraq+death+toll+sharply+October/5638077/story.html |url-status=dead |archive-url=https://web.archive.org/web/20111111064434/http://www.montrealgazette.com/news/Iraq+death+toll+sharply+October/5638077/story.html |archive-date=11 November 2011 |access-date=3 November 2011 }} for a total of 26,405 dead.</ref>

[[File:U.S. Army firefight in Kunar.jpg|thumb|U.S. Army soldiers with the 2nd Battalion, [[327th Infantry Regiment]], [[101st Airborne Division]] returning fire during a firefight with Taliban forces in Barawala Kalay Valley in [[Kunar Province|Kunar province]], Afghanistan, March 2011]]

Until 2009, the army's chief modernization plan, its most ambitious since World War II,<ref>{{cite news|title=Defense Secretary Gates observes Army Future Combat Systems progress|url=https://www.highbeam.com/doc/1P3-1478644341.html|archive-url=https://web.archive.org/web/20170525180514/https://www.highbeam.com/doc/1P3-1478644341.html|url-status=dead|archive-date=25 May 2017|access-date=12 May 2017|work=US Fed News Service|date=9 May 2008}}</ref> was the [[Future Combat Systems]] program. In 2009, many systems were canceled, and the remaining were swept into the [[BCT Modernization|BCT modernization program]].<ref>{{cite news|title=FCS Program Transitions to Army BCT Modernization|url=http://www.defencetalk.com/fcs-program-transitions-to-army-bct-modernization-20092/|access-date=21 November 2016|agency=Defencetalk.com|publisher=defencetalk.com|date=26 June 2009}}</ref> By 2017, the Brigade Modernization project was completed and its headquarters, the Brigade Modernization Command, was renamed the Joint Modernization Command, or JMC.<ref>{{cite web |url=http://fortblissbugle.com/bmc-redesignated-jmc-new-name-better-reflects-evolving-organizational-mission |title=BMC redesignated JMC New name better reflects evolving organizational mission &#124; Fort Bliss Bugle |access-date=22 March 2017 |url-status=dead |archive-url=https://web.archive.org/web/20170216213925/http://fortblissbugle.com/bmc-redesignated-jmc-new-name-better-reflects-evolving-organizational-mission/ |archive-date=16 February 2017 }}</ref> In response to [[Budget sequestration in 2013]], Army plans were to shrink to 1940 levels,<ref>{{cite news|url=https://www.nytimes.com/2014/02/24/us/politics/pentagon-plans-to-shrink-army-to-pre-world-war-ii-level.html|title=Pentagon Plans to Shrink Army to Pre-World War II Level|last1=Shanker|first1=Thom|last2=Cooper|first2=Helene|date=23 February 2014|work=The New York Times Company|access-date=23 February 2014}}</ref> although actual Active-Army end-strengths were projected to fall to some 450,000 troops by the end of FY2017.<ref name=troopLevels2015Plan >{{Cite web|url=https://www.army.mil/article/151992/army_to_realign_brigades_cut_40000_soldiers_17000_civilians|title=Army to realign brigades, cut 40,000 Soldiers, 17,000 civilians|website= Army.mil|date=10 July 2015 }}</ref><ref name= authorizedStrength2020 >[https://www.army.mil/article/218533/soldier_pay_quality_of_life_modernization_among_priorities_in_budget_proposal Joe Lacdan, Army News Service (March 13, 2019) Soldier pay, quality of life, modernization among priorities in budget proposal] Requested troop strengths: Active (480,000), NG (336,000), and Reserve (189,500) for 2020 budget</ref> From 2016 to 2017, the Army retired hundreds of [[OH-58 Kiowa Warrior]] observation helicopters,<ref name="retired">{{cite news|title=Kiowa Warriors pass torch to Apache attack helicopters in South Korea|url=https://www.stripes.com/news/pacific/kiowa-warriors-pass-torch-to-apache-attack-helicopters-in-south-korea-1.450886#.WRZUIuXyvic|access-date=13 May 2017|work=Stars and Stripes|date=26 January 2017}}</ref> while retaining its Apache gunships.<ref name= faraScoutCapability >{{Cite web|url=https://breakingdefense.com/2019/03/dont-panic-about-apaches-army-not-junking-gunships/|title=Don't Panic About Apaches: Army Not Junking Gunships|first=Barry|last=Rosenberg|date=28 March 2019}}</ref> The 2015 expenditure for Army research, development and acquisition changed from $32&nbsp;billion projected in 2012 for FY15 to $21&nbsp;billion for FY15 expected in 2014.<ref name=Drw>Drwiega, Andrew. "[http://www.aviationtoday.com/rw/services/finance-and-insurance/Missions-Solutions-Summit-Army-Leaders-Warn-of-Rough-Ride-Ahead_82218.html Missions Solutions Summit: Army Leaders Warn of Rough Ride Ahead] {{Webarchive|url=https://web.archive.org/web/20140714153025/http://www.aviationtoday.com/rw/services/finance-and-insurance/Missions-Solutions-Summit-Army-Leaders-Warn-of-Rough-Ride-Ahead_82218.html |date=14 July 2014}}" ''Rotor&Wing'', 4 June 2014. Accessed: 8 June 2014.</ref>

==Organization==
[[File:Organization of U.S. Space Force.svg|thumb|350x350px|Organization of the United States Army within the Department of Defense]]

===Planning===
By 2017, a task force was formed to address Army modernization,<ref name= afcTF2017 >[https://armypubs.army.mil/epubs/DR_pubs/DR_a/pdf/web/ARN6391_AD2017-33_Web_Final.pdf Army Directive 2017–33 (Enabling the Army Modernization Task Force) (7 November 2017)] References Decker-Wagner 2011</ref> which triggered shifts of units: [[United States Army Combat Capabilities Development Command|CCDC]], and [[United States Army Capabilities Integration Center|ARCIC]], from within [[United States Army Materiel Command|Army Materiel Command]] (AMC), and [[United States Army Training and Doctrine Command|Army Training and Doctrine Command]] (TRADOC), respectively, to a new Army Command (ACOM) in 2018.<ref name= G.O.2018-10 >Secretary of the Army, Mark T. Esper (4 June 2018), ESTABLISHMENT OF UNITED STATES ARMY FUTURES COMMAND [https://armypubs.army.mil/epubs/DR_pubs/DR_a/pdf/web/ARN11199_GO1810_FINAL.pdf Army General order G.O.2018-10]</ref> The [[United States Army Futures Command|Army Futures Command]] (AFC), is a peer of FORSCOM, TRADOC, and AMC, the other ACOMs.<ref name=AR10-87>Source: [http://www.army.mil/info/organization/ Organization, United States Army. For detail, see AR10-87]</ref> AFC's mission is modernization reform: to design hardware, as well as to work within the acquisition process which defines materiel for AMC. TRADOC's mission is to define the architecture and organization of the Army, and to train and supply soldiers to FORSCOM.<ref>{{cite web|url=https://www.youtube.com/watch?v=tDlNNckJzTY |archive-url=https://ghostarchive.org/varchive/youtube/20211211/tDlNNckJzTY |archive-date=11 December 2021 |url-status=live|title="The Future Army," featuring U.S. General David G. Perkins|last=Center for Strategic & International Studies|date=29 April 2014|publisher=[[YouTube]]|access-date=2 November 2017}}{{cbignore}}</ref>{{rp|minutes 2:30–15:00}}<ref name=PerkinsAOC/> [[United States Army Futures Command#Cross-functional teams|AFC's cross-functional teams (CFTs)]] are Futures Command's vehicle for sustainable [[United States Army Futures Command#Need for modernization reform|reform of the acquisition process]] for the future.<ref name= acqReformCulture >{{Cite web|url=https://www.army.mil/article/219858/acquisition_reform_requires_culture_shift_officials_say|title=Acquisition reform requires culture shift, officials say|website= Army.mil|date=9 April 2019 }}</ref> In order to support the Army's modernization priorities, its FY2020 budget allocated $30&nbsp;billion for the top six modernization priorities over the next five years.<ref name=fy2020,30billion >{{Cite news|url=https://www.army.mil/article/217813/army_fy20_budget_proposal_realigns_30_billion|title=Army FY20 budget proposal realigns $30 billion|website= army.mil}}</ref> The $30&nbsp;billion came from $8&nbsp;billion in cost avoidance and $22&nbsp;billion in terminations.<ref name=fy2020,30billion />

===Army Components===
{{see also|Structure of the United States Army}}
[[File:DA Pam 10-1 Figure 1-1.png|thumb|upright=1.15|U.S. Army organization chart<ref>DA Pam 10–1 ''Organization of the United States Army'', Figure 1-1. '"Army Organizations Execute Specific Functions and Assigned Missions"</ref>]]

The task of organizing the U.S. Army commenced in 1775.<ref>[https://web.archive.org/web/20030325102856/http://www.army.mil/usapa/epubs/pdf/p10_1.pdf Organization of the United States Army: America's Army 1775 – 1995, DA PAM 10–1]. Headquarters, Department of the Army, Washington, 14 June 1994.</ref> In the first one hundred years of its existence, the United States Army was maintained as a small peacetime force to man permanent [[forts]] and perform other non-wartime duties such as [[United States Army Corps of Engineers|engineering]] and construction works. During times of war, the U.S. Army was augmented by the much larger [[United States Volunteers]] which were raised independently by various state governments. States also maintained full-time [[militia]]s which could also be called into the service of the army.

[[File:American World War II senior military officials, 1945.JPEG|thumb|Senior American commanders of the [[European theatre of World War II]]. <br />*Seated are (from left to right) Generals [[William H. Simpson]], [[George S. Patton]], [[Carl A. Spaatz]], [[Dwight D. Eisenhower]], [[Omar Bradley]], [[Courtney H. Hodges]], and [[Leonard T. Gerow]] <br />*standing are (from left to right) Generals [[Ralph Francis Stearley|Ralph F. Stearley]], [[Hoyt Vandenberg]], [[Walter Bedell Smith]], [[Otto P. Weyland]], and [[Richard E. Nugent]]]]

By the twentieth century, the U.S. Army had mobilized the U.S. Volunteers on four occasions during each of the major wars of the nineteenth century. During World War I, the "[[National Army (USA)|National Army]]" was organized to fight the conflict, replacing the concept of U.S. Volunteers.<ref name="autogenerated3">{{cite book|last=Finnegan|first=John Patrick|author2=Romana Danysh|editor=Jeffrey J. Clarke|year=1998|title=Military Intelligence|chapter=Chapter 2: World War I|series=Army Lineage Series|publisher=[[Center of Military History, United States Army]]|isbn=978-0160488283|oclc=35741383|location=Washington, D.C., United States|at=online|chapter-url=http://www.history.army.mil/books/Lineage/mi/ch2.htm|url-status=dead|archive-url=https://web.archive.org/web/20090830141819/http://www.history.army.mil/books/Lineage/mi/ch2.htm|archive-date=30 August 2009}}</ref> It was demobilized at the end of World War I, and was replaced by the Regular Army, the Organized Reserve Corps and the state militias. In the 1920s and 1930s, the "career" soldiers were known as the "[[Regular Army (United States)|Regular Army]]" with the "Enlisted Reserve Corps" and "Officer Reserve Corps" augmented to fill vacancies when needed.<ref name="autogenerated1">{{cite web |last=Pullen |first=Randy |date=23 April 2008|title=Army Reserve Marks First 100 Years|format=online article|publisher=DefenceTalk|archive-date=24 April 2008|access-date=8 August 2008<!--based on page oldid=230430444-->|url=http://www.defencetalk.com/news/publish/army/Army_Reserve_Marks_First_100_Years110015618.php|archive-url=https://web.archive.org/web/20080424165606/http://www.defencetalk.com/news/publish/army/Army_Reserve_Marks_First_100_Years110015618.php}}</ref>

In 1941, the "[[Army of the United States]]" was founded to fight World War II. The Regular Army, Army of the United States, the National Guard and Officer/Enlisted Reserve Corps (ORC and ERC) existed simultaneously. After World War II, the ORC and ERC were combined into the [[United States Army Reserve]]. The Army of the United States was re-established for the [[Korean War]] and [[Vietnam War]] and was demobilized upon the suspension of the [[Conscription in the United States|draft]].<ref name="autogenerated1"/>

Currently, the Army is divided into the [[Regular Army (United States)|Regular Army]], the Army Reserve and the [[Army National Guard]].<ref name="autogenerated3"/>  Some states further maintain [[state defense force]]s, as a type of reserve to the National Guard, while all states maintain regulations for [[Militia (United States)|state militias]].<ref>Department of Defense, Under Secretary of Defense for Personnel and Readiness, Military compensation background papers, Seventh edition, page 229. Department of Defense, 2005.</ref> State militias are both "organized", meaning that they are armed forces usually part of the state defense forces, or "unorganized" simply meaning that all able-bodied males may be eligible to be called into military service.

The U.S. Army is also divided into [[List of United States Army careers|several branches and functional areas]].  Branches include officers, warrant officers, and enlisted Soldiers while functional areas consist of officers who are reclassified from their former branch into a functional area. However, officers continue to wear the [[United States Army branch insignia|branch insignia]] of their former branch in most cases, as functional areas do not generally have discrete insignia. Some branches, such as [[United States Army Special Forces|Special Forces]], operate similarly to functional areas in that individuals may not join their ranks until having served in another Army branch. Careers in the Army can extend into cross-functional areas for officer,<ref name=AACSL>{{Cite web|url=https://asc.army.mil/web/news-military-career-corner-dacm-july-2018/|title=Military (Officer) Corner: Army Acquisition Centralized Selection List|first=Aris|last=Morris}}</ref> warrant officer, enlisted, and civilian personnel.

{|class="wikitable" style="text-align: center;"
|+ U.S. Army branches and functional areas
!Branch
!Insignia and colors
!style="background:#25185d; color:white;"|
!Branch
!Insignia and colors
!style="background:#25185d; color:white;"|
!colspan="2"|Functional Area (<span class="ltr">FA</span>)
|-
|[[Acquisition Corps]] (<span class="ltr">AC</span>)
|style="background:black;"|[[File:Acquisition-Corps-Branch-In.png|x50px]]
!style="background:#25185d;"|
|[[United States Army Air Defense Artillery|Air Defense Artillery]] (<span class="ltr">AD</span>)
|style="background:#ff2400;|[[File:USAADA-BRANCH.svg|x50px]]
|style="background:#25185d; color:white;"|
|colspan="2"|Information Network Engineering (FA 26)
|-
|[[United States Army Adjutant General's Corps|Adjutant General's Corps]] (<span class="ltr">AG</span>) <br />''Includes [[United States military bands|Army Bands]] (<span class="ltr">AB</span>)''
|style="background:navy; border:5px groove #ff2400;"|[[File:AdjGenBC.svg|x45px]] [[File:ArmyBand Collar Brass.PNG|x45px]]
!style="background:#25185d; color:white;"|
|[[Armor Branch|Armor]] (<span class="ltr">AR</span>) <br />''Includes [[United States Cavalry|Cavalry]] (<span class="ltr">CV</span>)''
|style="background:yellow; color:black;"|[[File:Armor-Branch-Insignia.png|x40px]] [[File:US-Cavalry-Branch-Insignia.png|x33px]]
|style="background:#25185d; color:white;"|
|colspan="2"|[[Information Operations (United States)|Information Operations]] (FA 30)
|-
|[[United States Army Aviation Branch|Aviation]] (<span class="ltr">AV</span>)
|style="background:#4166f5; border:5px groove #FF7F00;"|[[File:US Army Aviation Branch Insignia.svg|x48px]]
!style="background:#25185d; color:white;"|
|[[Civil affairs#United States Army|Civil Affairs Corps]] (<span class="ltr">CA</span>)
|style="background:purple; border:5px groove #FFFFFF;"|[[File:USA - Civil Affairs.png|40px]]
|style="background:#25185d; color:white;"|
|colspan="2"|Strategic Intelligence (FA 34)
|-
|[[United States Army Chaplain Corps|Chaplain Corps]] (<span class="ltr">CH</span>)
|style=background:black;"|[[File:ChristChaplainBC.gif|x40px]] [[File:JewishChaplainBC.gif|x42px]] [[File:US Army Hindu Faith Branch Insignia.png|x45px]] <br />[[File:BuddhistChaplainBC.gif|x42px]] [[File:MuslimChaplainBC.gif|x40px]] [[File:ChaplainAsstBC.gif|x45px]]
!style="background:#25185d; color:white;"|
|[[United States Army Chemical Corps|Chemical Corps]] (<span class="ltr">CM</span>)
|style="background:#0047AB; border:5px groove #FFDF00;"|[[File:Chemical Branch Insignia.svg|x28px]]
|style="background:#25185d; color:white;"|
|colspan="2"|Space Operations (FA 40)
|-
|[[Cyber Branch (United States Army)|Cyber Corps]] (<span class="ltr">CY</span>)
|style="background:gray; border:5px groove black;"|[[File:US Army Cyber Branch Insignia.png|x45px]]
!style="background:#25185d; color:white;"|
|[[United States Army Dental Command|Dental Corps]] (<span class="ltr">DC</span>)
|style="background:#800000; border:5px groove #FFFFFF;"|[[File:USA - Army Medical Dental.png|x50px]]
|style="background:#25185d; color:white;"|
|colspan="2"|[[Public affairs (military)|Public Affairs Officer]] (FA 46)
|-
|[[United States Army Corps of Engineers|Corps of Engineers]] (<span class="ltr">EN</span>)
|style="background:#FF2400; border:5px groove #FFFFFF;"|[[File:USA - Engineer Branch Insignia.png|x35px]]
!style="background:#25185d; color:white;"|
|[[United States Army Field Artillery Corps|Field Artillery]] (<span class="ltr">FA</span>)
|style="background:#FF2400;"|[[File:USA - Army Field Artillery Insignia.png|x40px]]
|style="background:#25185d; color:white;"|
|colspan="2"|Academy Professor (FA 47)
|-
|[[United States Army Finance Corps|Finance Corps]] (<span class="ltr">FI</span>)
|style="background:#D3D3D3; border:5px groove #FFDF00;"|[[File:USA - Army Finance Corps.png|x40px]]
!style="background:#25185d; color:white;"|
|[[Infantry Branch (United States)|Infantry]] (<span class="ltr">IN</span>)
|style="background:#A2e3e8;"|[[File:USA - Army Infantry Insignia.png|x38px]]
|style="background:#25185d; color:white;"|
|colspan="2"|[[Foreign Area Officer]] (FA 48)
|-
|[[Office of the Inspector General of the United States Army|Inspector General]] (<span class="ltr">IG</span>)
|style="background:navy; border:5px groove lightblue;"|[[File:USA - Inspector General Branch Insignia.png|x38px]]
|style="background:#25185d; color:white;"|
|[[United States Army Logistics Branch|Logistics]] (<span class="ltr">LG</span>)
|style="background: #BF1238; border:5px groove #CD7F32;"|[[File:USA - Logistics Branch Insignia.png|x50px]]
|style="background:#25185d; color:white;"|
|colspan="2"|Operations Research/Systems Analysis (FA 49)
|-
|[[United States Army Judge Advocate General's Corps|Judge Advocate General's Corps]] (<span class="ltr">JA</span>)
|style="background:navy; border:5px groove #FFFFFF;"|[[File:JAGC Staff Corps Insignia Army.gif|x35px]]
!style="background:#25185d; color:white;"|
|[[United States Army Military Intelligence|Military Intelligence Corps]] (<span class="ltr">MI</span>)
|style="background:#1E90FF; border:5px groove #D3D3D3;"|[[File:MI Corps Insignia.svg|x55px]]
|style="background:#25185d; color:white;"|
|colspan="2"|Force Management (FA 50)
|-
|[[United States Army Medical Corps|Medical Corps]] (<span class="ltr">MC</span>)
|style="background:#800000; border:5px groove #FFFFFF;"|[[File:USA - Army Medical Corps.png|x50px]]
!style="background:#25185d; color:white;"|
|[[Army Medical Department (United States)#Medical Service Corps (<span class="ltr">MS</span>)|Medical Service Corps]] (<span class="ltr">MS</span>)
|style="background:#800000; border:5px groove #FFFFFF;"|[[File:USA - Army Medical Specialist Corps.png|x49px]]
|style="background:#25185d; color:white;"|
|colspan="2"|Acquisition ([[List of United States Army careers#Army Acquisition Corps (FA and CMF 51)|FA 51]])<ref name=AACSL/>
|-
|[[United States Army Military Police Corps|Military Police Corps]] (<span class="ltr">MP</span>)
|style="background:green; border:5px groove yellow;"|[[File:USAMPC-Branch-Insignia.png|x38px]]
!style="background:#25185d; color:white;"|
|[[United States Army Nurse Corps|Army Nurse Corps]] (<span class="ltr">AN</span>)
|style="background:#800000; border:5px groove #FFFFFF;"|[[File:USA - Army Medical Nurse.png|x50px]]
|style="background:#25185d; color:white;"|
|colspan="2"|Simulation Operations (FA 57)
|-
|[[Psychological Operations (United States)|Psychological Operations]] (<span class="ltr">PO</span>)
|style="background:#4F7942; border:5px groove #D3D3D3;"|[[File:USA - Psych Ops Branch Insignia.png|50px]]
|style="background:#25185d; color:white;"|
|[[Army Medical Department (United States)#Medical Specialist Corps (<span class="ltr">SP</span>)|Medical Specialist Corps]] (<span class="ltr">SP</span>)
|style="background:#800000; border:5px groove #FFFFFF;"|[[File:USA - Army Medical Specialist.png|x50px]]
!style="background:#25185d; color:white;"|
|colspan="2"|Army Marketing (FA 58)<ref>[https://www.army.mil/article/231034/new_marketing_job_lets_officers_steward_army_brand New marketing job lets officers steward Army brand], Army.mil, by Thomas Brading (Army News Service), dated 16 December 2019, last accessed 1 January 2020</ref>
|-
|[[United States Army Quartermaster Corps|Quartermaster Corps]] (<span class="ltr">QM</span>)
|style="background:#F0DC82;"|[[File:USA - Quartermaster Corps Branch Insignia.png|x42px]]
|style="background:#25185d; color:white;"|
|[[Staff Specialist Corps]] (<span class="ltr">SS</span>) <br />(USAR and ARNG only)
|style="background:green;"|[[File:StaffSpecUSAR ARNGBC.gif|x45px]]
!style="background:#25185d; color:white;"|
|colspan="2"|Health Services (FA 70)
|-
|[[United States Army Special Forces|Special Forces]] (<span class="ltr">SF</span>)
|style="background:#004B49;"|[[File:USA - Special Forces Branch Insignia.png|x35px]]
|style="background:#25185d; color:white;"|
|[[United States Army Ordnance Corps|Ordnance Corps]] (<span class="ltr">OD</span>)
|style="background:crimson; border:5px groove yellow;"|[[File:Ordnance Branch Insignia.svg|x50px]]
!style="background:#25185d; color:white;"|
|colspan="2"|Laboratory Sciences (FA 71)
|-
|[[United States Army Veterinary Corps|Veterinary Corps]] (<span class="ltr">VC</span>)
|style="background:maroon; border:5px groove #FFFFFF;"|[[File:USA - Army Medical Veterinary.png|x50px]]
|style="background:#25185d; color:white;"|
|[[Public affairs (military)|Public Affairs]] (<span class="ltr">PA</span>)
|style="background:#008080; border:5px groove yellow;"|[[File:PublicAffairsBC.svg|45px]]
!style="background:#25185d; color:white;"|
|colspan="2"|Preventive Medicine Sciences (FA 72)
|-
|[[United States Army Transportation Corps|Transportation Corps]] (<span class="ltr">TC</span>)
|style="background:#B22222; border:5px groove #FFDF00;"|[[File:USA - Transportation Corps Branch Insignia.png|x50px]]
!style="background:#25185d; color:white;"|
|[[United States Army Signal Corps|Signal Corps]] (<span class="ltr">SC</span>)
|style="background:#FF7F00; border:5px groove #FFFFFF;"|[[File:Insignia signal.svg|x40px]]
!style="background:#25185d; color:white;"|
|colspan="2"|Behavioral Sciences (FA 73)
|-
!colspan="8"|Special branch insignias ''(for some unique duty assignments)''
|-
|[[National Guard Bureau]] (NGB)
|style="background:darkblue;"|[[File:NatlGuardBureauBC.gif|50px]]
!style="background:#25185d; color:white;"|
|General Staff
|style="background:#000000; border:5px groove #FFD700;"|[[File:USA - Army General Staff Branch Insignia.png|50px]]
!style="background:#25185d; color:#FFFFFF;"|
|[[United States Military Academy|U.S. Military Academy Staff]]
|style="background:white;"|[[File:US Military Academy Staff Insignia.png|x50px]]
|-
|[[Armed Forces Chaplaincy Center|Chaplain Candidate]]
|style=background:black;"|[[File:Chaplain Candidate Branch Insignia.png|x50px]]
!style="background:#25185d; color:white;"|
|[[Officer Candidate School (United States Army)|Officer Candidate]]
|style="background:white;"|[[File:US Army Officer Candidate Insignia.png|75px]]
!style="background:#25185d; color:white;"|
|[[Warrant Officer Candidate School (United States Army)|Warrant Officer Candidate]]
|style="background:white;"|[[File:US Army Warrant Officer Candidate Insignia.png|75px]]
|-
|colspan="5"|[[Aide-de-camp]] <br />[[File:Lapel insignia of an aide-de-camp to a U.S. Army Brigadier General.jpg|45px]] [[File:MajGenAide.jpg|45px]] [[File:LtGenAide.jpg|45px]] [[File:GenAide.jpg|45px]] [[File:GA-Aide.GIF|45px]] [[File:Branch insignia, Aide to Vice Chief, National Guard Bureau.jpg|45px]] [[File:Branch insignia, Aide to Chief, National Guard Bureau.jpg|45px]] [[File:Aide VCoS-Army BC.png|45px]] [[File:AideCoSArmyBC.gif|45px]] [[File:Aide UnderSec-Army BC.png|45px]] [[File:AideSecyArmyBC.gif|45px]] [[File:Aide VJCoS BC.png|45px]] [[File:AideJCoSBC.gif|45px]] [[File:AideSecyDefenseBC.gif|45px]] [[File:Aide-de-camp insignia for VP aide.gif|45px]] [[File:AidePOTUSBC.gif|45px]]
!style="background:#25185d; color:white;"|
|colspan="2"|[[Senior Enlisted Advisor]] (SEA) <br />[[File:USA - Army Immaterial Command Insignia.png|x44px]] [[File:Sma-bos.jpg|x45px]] [[File:SEAC-collar1.jpg|x45px]]
|}

Before 1933, members of the Army National Guard were considered state militia until they were mobilized into the U.S. Army, typically on the onset of war. Since the 1933 amendment to the [[National Defense Act of 1916]], all Army National Guard soldiers have held dual status. They serve as National Guardsmen under the authority of the governor of their state or territory and as reserve members of the U.S. Army under the authority of the president, in the Army National Guard of the United States.

Since the adoption of the total force policy, in the aftermath of the Vietnam War, reserve component soldiers have taken a more active role in U.S. military operations. For example, Reserve and Guard units took part in the [[Gulf War]], peacekeeping in [[Kosovo]], Afghanistan, and the [[2003 invasion of Iraq]].

===Army commands and army service component commands===
[[File:US Army Star Logo SSI.png|25px]] [[United States Department of the Army|Headquarters, United States Department of the Army]] (HQDA):
{|class="wikitable"
|-
!Army Commands
!Current commander
!Location of headquarters{{efn|name=renaming}}
|-
|[[File:United States Army Forces Command SSI.svg|20px]] [[United States Army Forces Command]] (FORSCOM)<ref>{{cite web|url=https://www.forscom.army.mil/About/|title=About US – United States Army Forces Command|website=forscom.army.mil|access-date=February 17, 2024}}</ref>|| GEN [[Andrew P. Poppas]] || [[Fort Liberty]], [[North Carolina]]
|-
|[[File:Army Futures Command SSI.svg|20px]] [[United States Army Futures Command]] (AFC)<ref>{{cite web|url=https://www.army.mil/futures|title=Army Futures Command – About AFC|website=United States Army|access-date=February 17, 2024}}</ref>|| GEN [[James Rainey|James E. Rainey]] || [[Austin, Texas]]
|-
|[[File:AMC shoulder insignia.svg|20px]] [[U.S. Army Materiel Command|United States Army Materiel Command]] (AMC)<ref>{{cite web|url=https://www.amc.army.mil/Organization/History/|title=AMC History – Army Material Command|website=AMC.Army.mil|access-date=February 17, 2024}}</ref>|| LTG [[Christopher O. Mohan]] (acting) || [[Redstone Arsenal]], [[Alabama]]
|-
|[[File:TRADOC patch.svg|20px]] [[United States Army Training and Doctrine Command]] (TRADOC)<ref>{{cite web|url=https://www.tradoc.army.mil/about/|title=About TRADOC – United States Army Training and Doctrine|website=tradoc.army.mil|access-date=February 17, 2024}}</ref>|| GEN [[Gary Brito|Gary M. Brito]] || [[Fort Eustis]], [[Virginia]]
|-
!Army Service Component Commands
!Current commander
!Location of headquarters
|-
|[[File:US3ASSI.svg|20px]] [[United States Army Central]] (ARCENT)/[[United States Army Central|Third Army]]<ref>{{cite web|url=https://www.usarcent.army.mil/About/|title=About U.S. Army Central|website=usarcent.army.mil|access-date=February 17, 2024}}</ref>||LTG [[Patrick Frank|Patrick D. Frank]] || [[Shaw Air Force Base]], [[South Carolina]]
|-
|[[File:USAREUR Insignia.svg|20px]] [[United States Army Europe and Africa]]/[[United States Army Europe and Africa|Seventh Army]]|| GEN [[Darryl A. Williams]]<ref>{{cite web |url=https://www.eur.army.mil/Leadership/|title=Leaders {{!}} U.S. Army Europe Leaders|website=Army.mil|access-date=1 October 2020}}</ref>||[[Lucius D. Clay Kaserne|Clay Kaserne]], [[Wiesbaden]], [[Germany]]
|-
|[[File:United States Army North CSIB.svg|20px]] [[United States Army North]] (ARNORTH)/[[United States Army North|Fifth Army]]<ref>{{cite web|url=https://www.arnorth.army.mil/About/History/|title=History of U.S. Army North|website=arnorth.army.mil|access-date=February 17, 2024}}</ref>|| LTG [[John R. Evans Jr.]] || [[Joint Base San Antonio]], [[Texas]]
|-
|[[File:USARPAC insignia.svg|20px]] [[United States Army Pacific]] (USARPAC)<ref>{{cite web|url=https://www.usarpac.army.mil/Our-Story/Our-History/|title=United States Army Pacific Overview|website=usarpac.army.mil|access-date=February 17, 2024}}</ref>|| GEN [[Charles A. Flynn]] || [[Fort Shafter]], [[Hawaii]]
|-
|[[File:UNITED STATES ARMY SOUTH SSI.svg|20px]] [[United States Army South]] (ARSOUTH)/[[Sixth Army (United States)|Sixth Army]]<ref>{{cite web|url=https://www.arsouth.army.mil/About-Us/|title=United States Army South Complete Overview|website=arsouth.army.mil|access-date=February 17, 2024}}</ref>|| MG William L. Thigpen || Joint Base San Antonio, Texas
|-
|[[File:Surface Deployment and Distribution Command SSI.svg|20px]] [[Military Surface Deployment and Distribution Command]] (SDDC)<ref>{{cite web|url=https://armypubs.army.mil/epubs/DR_pubs/DR_a/pdf/web/go0634.pdf|title=Army General Order 2006–34|date=16 October 2006}}</ref> || MG [[Gavin A. Lawrence]] || [[Scott AFB]], [[Illinois]]
|-
|[[File:US Army Cyber Command SSI.png|20px]] [[U.S. Army Cyber Command|United States Army Cyber Command]] (ARCYBER)<ref name="army.mil">{{cite web|url=http://www.apd.army.mil/pdffiles/go1402.pdf |title=General Orders No. 2014–02|publisher= Department of the Army |url-status=dead|archive-url=https://web.archive.org/web/20150203010434/http://www.apd.army.mil/pdffiles/go1402.pdf |archive-date=3 February 2015}}</ref><ref>{{cite web|publisher= Department of the Army|url= http://www.apd.army.mil/pdffiles/go1026.pdf |title=General Orders No. 2010-26: Establishment of the United States Army Cyber Command|url-status= dead|archive-url=https://web.archive.org/web/20110514102412/http://www.apd.army.mil/pdffiles/go1026.pdf |archive-date=14 May 2011}}</ref><ref>{{cite web|url=https://www.army.mil/article/46012/|title=Army establishes Army Cyber Command |author= U.S. Army|date=1 October 2010|work=army.mil|access-date=28 June 2016}}</ref> || LTG [[Maria B. Barrett]] || [[Fort Eisenhower]], [[Georgia (U.S. state)|Georgia]]
|-
|[[File:United States Army Space and Missile Defense Command Logo.svg|20px]] [[United States Army Space and Missile Defense Command]]/United States Army Forces Strategic Command (USASMDC/ARSTRAT)<ref>{{cite web|url=https://www.smdc.army.mil/ABOUT/|title=About the Command – United States Army Space and Missile Defense Command|website=smdc.army.mil|access-date=February 17, 2024}}</ref>|| LTG [[Daniel L. Karbler]] || Redstone Arsenal, Alabama
|-
|[[File:US Army Special Operations Command SSI.svg|20px]] [[United States Army Special Operations Command]] (USASOC)<ref>{{cite web|url=https://www.army.mil/usasoc#org-about|title=USASOC Overview|website=United States Army|access-date=February 17, 2024}}</ref>|| LTG [[Jonathan P. Braga]] || Fort Liberty, North Carolina
|-
!Operational Force Headquarters
!Current commander
!Location of headquarters
|-
|[[File:Eighth United States Army CSIB.svg|20px]] [[Eighth Army (United States)|Eighth Army]] (EUSA)<ref>{{cite web|url=http://www.apd.army.mil/pdffiles/go1202.pdf|title=General Orders No. 2012-02: Redesignation and Assignment of Eighth Army as a Subordinate Command of The United States Army Pacific|url-status=dead|archive-url=https://web.archive.org/web/20160304193652/http://www.apd.army.mil/pdffiles/go1202.pdf|archive-date=4 March 2016 |publisher= Department of the Army}}</ref> || LTG [[Willard Burleson|Willard M. Burleson III]]||[[Camp Humphreys]], [[South Korea]]
|-
!Direct reporting units
!Current commander
!Location of headquarters
|-
|[[File:Arlington National Cemetery Seal.png|20px]] [[Arlington National Cemetery]] and [[United States Soldiers' and Airmen's Home National Cemetery|Soldiers' and Airmen's Home National Cemetery]]<ref>{{cite web|url=http://www.apd.army.mil/pdffiles/go1475.pdf|title=Designation of Arlington National Cemetery and Soldiers' and Airmen's Home National Cemetery as a Direct Reporting Unit|access-date=7 February 2015|url-status=dead|archive-url=https://web.archive.org/web/20150203015921/http://www.apd.army.mil/pdffiles/go1475.pdf|archive-date=3 February 2015}}</ref> || Katharine Kelley<ref>{{cite web|url=http://www.allgov.com/news/top-stories/superintendent-of-arlington-national-cemetery-who-is-kate-kelley-170507?news=860171|title=Who is Kate Kelley?|publisher=allgov.com|access-date=13 December 2018}}</ref> {{small|''(civilian)''}} || [[Arlington County, Virginia]]
|-
|Civilian Protection Center of Excellence<ref>{{cite web|url=https://armypubs.army.mil/epubs/DR_pubs/DR_a/ARN38095-AGO_2023-06-000-WEB-1.pdf |title=Establishment of the Civilian Protection Center of Excellence as a Direct Reporting Unit |date=5 April 2023 |website=Army Publishing Directorate }}</ref> ||Michael McNerney ||Arlington County, Virginia
|-
|United States Army Joint Counter-Small Unmanned Aircraft Systems Office<ref>https://armypubs.army.mil/epubs/DR_pubs/DR_a/ARN40137-AGO_2024-02-000-WEB-1.pdf</ref> || ||Arlington County, Virginia
|-
|[[File:Military Postal Service Agency.jpg|20px]] Military Postal Service Agency<ref>{{cite web|url=https://armypubs.army.mil/epubs/DR_pubs/DR_a/ARN33157-AGO_2021-08-000-WEB-1.pdf|title=Designation of Military Postal Serive Agency and its Subordiante Elements as Direct Reporting Unit|website=armypubs.army.mil}}</ref> || || Arlington County, Virginia
|-
|[[File:US Army ASAALT Insignia.svg|20px]] [[U.S. Army Acquisition Support Center|United States Army Acquisition Support Center]] (USAASC)<ref>{{cite web|url=http://www.apd.army.mil/pdffiles/go0633.pdf|title=Designation of the United States Army Acquisition Support Center as a Direct Reporting Unit|access-date=2 February 2015|url-status=dead|archive-url=https://web.archive.org/web/20160304115651/http://www.apd.army.mil/pdffiles/go0633.pdf|archive-date=4 March 2016}}</ref> || Craig A. Spisak<ref>{{cite web|url=https://asc.army.mil/web/leaders/|title=Craig Spisak|publisher=asc.army.mil|access-date=13 December 2018}}</ref> {{small|''(civilian)''}} ||[[Fort Belvoir|Fort Belvoir, Virginia]]
|-
|[[File:US Army Civilian Human Resources Agency seal.png|20px]] United States Army Civilian Human Resources Agency (CHRA)<ref>[http://www.apd.army.mil/Search/ePubsSearch/ePubsSearchDetailsForm.aspx?docID=0902c851800697fc DAGO 2017-03, DESIGNATION OF THE UNITED STATES ARMY CIVILIAN HUMAN RESOURCES AGENCY AND ITS SUBORDINATE ELEMENTS AS DIRECT REPORTING UNIT], apd.army.mil, dated 4 January 2017, last accessed 13 January 2017</ref> || Carol Burton<ref>{{cite web|url=https://portal.chra.army.mil/hr_public/ |title=About Us |publisher=CHRA |access-date=4 December 2020}}</ref> {{small|''(civilian)''}} || [[Aberdeen Proving Ground]], Maryland
|-
|[[File:USACE.gif|20px]] [[United States Army Corps of Engineers]] (USACE) || LTG [[Scott A. Spellmon]]<ref>{{cite web |title=Maj. Gen. Scott A. Spellmon — Army |url=https://www.congress.gov/nomination/116th-congress/1400 |website=Congress.Gov |date=20 July 2020 |access-date=23 January 2021}}</ref> || [[Washington, D.C.]]
|-
|[[File:Army-corrections-shoulder.jpg|20px]] [[United States Army Corrections Command]] (ACC)<ref>https://armypubs.army.mil/epubs/DR_pubs/DR_a/ARN37915-AGO_2023-02-000-WEB-1.pdf</ref> || BG Duane Miller || Arlington County, Virginia
|-
|[[File:Cid patch color.jpg|20px]] [[United States Army Criminal Investigation Command|United States Army Criminal Investigation Division]] (USACID) || Gregory D. Ford || [[Quantico, Virginia]]
|-
|[[File:HRCPatch.png|20px]] [[United States Army Human Resources Command]] (HRC)<ref>[http://www.apd.army.mil/Search/ePubsSearch/ePubsSearchDetailsForm.aspx?docID=0902c851800697fd DAGO 2017-04, DESIGNATION OF UNITED STATES ARMY HUMAN RESOURCES COMMAND AND ITS SUBORDINATE ELEMENTS AS DIRECT REPORTING UNIT], apd.army.mil, dated 4 January 2017, last accessed 13 January 2017</ref> || MG Thomas R. Drew || [[Fort Knox, Kentucky]]
|-
|[[File:INSCOM.svg|20px]] [[United States Army Intelligence and Security Command]] (INSCOM) || MG Timothy D. Brown || Fort Belvoir, Virginia
|-
|[[File:MEDCOM.png|20px]] [[United States Army Medical Command]] (MEDCOM) || LTG [[Mary V. Krueger]] || Joint Base San Antonio, Texas
|-
|[[File:United States Army Military District of Washington CSIB.svg|20px]] [[United States Army Military District of Washington]] (MDW) || MG  Trevor J. Bredenkamp  || [[Fort Lesley J. McNair]], [[Washington, D.C.]]
|-
|[[File:US Army Recruiting Command SSI.png|20px]] [[United States Army Recruiting Command]] (USAREC)<ref>https://armypubs.army.mil/epubs/DR_pubs/DR_a/ARN40138-AGO_2024-03-000-WEB-1.pdf</ref> || MG [[Johnny K. Davis]]<ref name=USAREC >{{Cite web|url=https://recruiting.army.mil/command_bios/|title=Command Bios}}</ref> ||[[Fort Knox|Fort Knox, Kentucky]]
|-
|[[File:United States Army Test and Evaluation Command SSI.png|20px]] [[United States Army Test and Evaluation Command]] (ATEC) || MG James J. Gallivan<ref>{{cite web |url= https://www.army.mil/article/206921/atec_welcomes_new_commander |title = (13 June 2018) ATEC welcomes new commander| date=13 June 2018 }}
*[https://www.atec.army.mil/leaders_cg.html Commanding General: Brig. Gen. James J. Gallivan]</ref>|| Aberdeen Proving Ground, Maryland
|-
|[[File:US Army War College SSI.png|20px]] [[United States Army War College]] (AWC)<ref>{{cite web|url=http://www.apd.army.mil/pdffiles/go1390.pdf |title=Designation of the United States Army War College as a Direct Reporting Unit |access-date=2 February 2015|url-status=dead |archive-url=https://web.archive.org/web/20150203021638/http://www.apd.army.mil/pdffiles/go1390.pdf|archive-date=3 February 2015}}</ref> || MG David C. Hill || [[Carlisle, Pennsylvania]]
|-
|[[File:USMA SSI.png|20px]] [[United States Military Academy]] (USMA) || LTG [[Steven W. Gilland]] || [[West Point, New York]]
|-
| colspan="3" style="text-align: center;" | '''Source:''' U.S. Army organization<ref>[http://www.army.mil/info/organization/ Organization], United States Army</ref>
|}

===Structure===
{{main|Structure of the United States Army}}
{{see also|Transformation of the United States Army}}
{{see also|Reorganization plan of the United States Army}}
[[File:1-175 INF Trains at Fort Dix.jpg|thumb|U.S. Army soldiers of the 1st Battalion, [[175th Infantry Regiment (United States)|175th Infantry Regiment]], Maryland Army National Guard conducting an urban cordon and search exercise as part of the army readiness and training evaluation program in the mock city of Balad at [[Fort Dix]], [[New Jersey]]]]
[[File:Ramadi august 2006 patrol.jpg|thumb|U.S. soldiers from the [[6th Infantry Regiment (United States)|6th Infantry Regiment]] taking up positions on a street corner during a foot patrol in [[Ramadi]], [[Iraq]]]]
[[File:1 CAV DIV charge.jpg|thumb|right|The [[1st Cavalry Division (United States)|1st Cavalry Division's]] combat aviation brigade performing a mock charge with the horse detachment]]
[[File:Army mil-54118-2009-10-27-091030big.jpg|thumb|[[Special Forces (United States Army)|U.S. Army Special Forces]] soldiers from the [[3rd Special Forces Group (United States)|3rd Special Forces Group]] patrolling a field in the Gulistan district of Farah, Afghanistan]]

See [[Structure of the United States Army]] for a detailed treatment of the [[Structure of the United States Army#History|history]], [[Structure of the United States Army#Active and Reserve Components|components]], [[Structure of the United States Army#Administrative and Operational|administrative and operational structure]] and the [[Structure of the United States Army#Branches and Functional Areas|branches and functional areas]] of the Army.

The U.S. Army is made up of three components: the active component, the Regular Army; and two reserve components, the Army National Guard and the Army Reserve. Both reserve components are primarily composed of part-time soldiers who train once a month – known as [[Battle Assembly|battle assemblies]] or unit training assemblies (UTAs) – and conduct two to three weeks of annual training each year. Both the Regular Army and the Army Reserve are organized under [[Title 10 of the United States Code]], while the National Guard is organized under [[Title 32 of the United States Code|Title 32]]. While the Army National Guard is organized, trained and equipped as a component of the U.S. Army, when it is not in federal service it is under the command of individual state and territorial governors. However, the District of Columbia National Guard reports to the U.S. president, not the district's mayor, even when not federalized. Any or all of the [[National Guard of the United States|National Guard]] can be federalized by presidential order and against the governor's wishes.<ref>''Perpich v. Department of Defense'', 496 U.S. 334 (1990)</ref>

The U.S. Army is led by a civilian [[United States Secretary of the Army|secretary of the Army]], who has the statutory authority to conduct all the affairs of the army under the authority, direction and control of the [[United States Secretary of Defense|secretary of defense]].<ref>{{cite web|url=http://www.gpo.gov/fdsys/pkg/USCODE-2008-title10/pdf/USCODE-2008-title10-subtitleB-partI-chap303-sec3013.pdf|title=10 U.S.C. 3013 |access-date=2 May 2016}}</ref> The [[Chief of Staff of the United States Army|chief of staff of the Army]], who is the highest-ranked military officer in the army, serves as the principal military adviser and executive agent for the secretary of the Army, i.e., its service chief; and as a member of the [[Joint Chiefs of Staff]], a body composed of the service chiefs from each of the four military services belonging to the Department of Defense who advise the [[president of the United States]], the secretary of defense and the [[United States National Security Council|National Security Council]] on operational military matters, under the guidance of the [[Chairman of the Joint Chiefs of Staff|chairman]] and [[Vice Chairman of the Joint Chiefs of Staff|vice chairman of the Joint Chiefs of Staff]].<ref>{{cite web|url=http://www.gpo.gov/fdsys/pkg/USCODE-2008-title10/pdf/USCODE-2008-title10-subtitleB-partI-chap305-sec3033.pdf|title=10 U.S.C. 3033|access-date=2 May 2016}}</ref><ref>{{cite web|url=http://www.gpo.gov/fdsys/pkg/USCODE-2008-title10/pdf/USCODE-2008-title10-subtitleA-partI-chap5-sec151.pdf|title=10 U.S.C. 151|access-date=2 May 2016}}</ref> In 1986, the [[Goldwater–Nichols Act]] mandated that operational control of the services follows a chain of command from the president to the secretary of defense directly to the [[Unified Combatant Command|unified combatant commanders]], who have control of all armed forces units in their geographic or function area of responsibility, thus the secretaries of the military departments (and their respective service chiefs underneath them) only have the responsibility to organize, train and equip their service components. The army provides trained forces to the combatant commanders for use as directed by the secretary of defense.<ref>{{cite web|url=http://www.gpo.gov/fdsys/pkg/USCODE-2008-title10/pdf/USCODE-2008-title10-subtitleA-partI-chap6-sec162.pdf|title=10 U.S.C. 162|access-date=2 May 2016}}</ref>

By 2013, the army shifted to six geographical commands that align with the six geographical unified combatant commands (CCMD):

* [[Third United States Army|United States Army Central]] headquartered at [[Shaw Air Force Base]], South Carolina
* [[Fifth United States Army|United States Army North]] headquartered at [[Fort Sam Houston]], Texas
* [[United States Army South]] headquartered at Fort Sam Houston, Texas
* [[United States Army Europe]] and Africa headquartered at [[Clay Kaserne]], Wiesbaden, Germany
* [[United States Army Pacific Command|United States Army Pacific]] headquartered at [[Fort Shafter]], Hawaii

The army also transformed its base unit from [[Division (military)|divisions]] to [[brigade]]s.<!-- When finished, the active army will have increased its combat brigades from 33 to 48, with similar increases in the National Guard and Reserve forces.--> Division lineage will be retained, but the divisional headquarters will be able to command any brigade, not just brigades that carry their divisional lineage. The central part of this plan is that each brigade will be modular, i.e., all brigades of the same type will be exactly the same and thus any brigade can be commanded by any division. As specified before the 2013 end-strength re-definitions, the three major types of brigade combat teams are:

* [[Brigade Combat Team#Heavy brigade combat team|Armored]] brigades, with a strength of 4,743 troops as of 2014.
* [[Stryker Brigade Combat Team|Stryker]] brigades, with a strength of 4,500 troops as of 2014.
* [[Brigade Combat Team#Infantry Brigade Combat Team|Infantry]] brigades, with a strength of 4,413 troops as of 2014.

In addition, there are combat support and service support modular brigades. Combat support brigades include [[Combat Aviation Brigade|aviation]] (CAB) brigades, which will come in heavy and light varieties, [[Fires Brigade|fires]] (artillery) brigades (now transforms to division artillery) and [[Battlefield Surveillance Brigade|expeditionary military intelligence brigades]]. [[Combat service support]] brigades include [[Sustainment Brigade|sustainment]] brigades and come in several varieties and serve the standard support role in an army.

===Combat maneuver organizations===
:''To track the effects of the 2018 budget cuts, see [[Transformation of the United States Army#Divisions and brigades]]''

The U.S. Army's conventional combat capability currently consists of 11 active divisions and 1 deployable division headquarters (7th Infantry Division) as well as several independent maneuver units.

From 2013 through 2017, the Army sustained organizational and end-strength reductions after several years of [[Grow the Army|growth]]. In June 2013, the Army announced plans to downsize to 32 active brigade combat teams by 2015 to match a reduction in active-duty strength to 490,000 soldiers. Army chief of staff Raymond Odierno projected that the Army was to shrink to "450,000 in the active component, 335,000 in the National Guard and 195,000 in U.S. Army Reserve" by 2018.<ref>{{cite news|url=http://www.army.mil/article/140768/CSA__SMA_hold_virtual_town_hall/|title=CSA Odierno and SMA Chandler virtual town hall, Jan 6, 2015 |website= army.mil |publisher=Army.mil|access-date=2 May 2016}}</ref> However, this plan was scrapped by the incoming Trump administration, with subsequent plans to expand the Army by 16,000 soldiers to a total of 476,000 by October 2017. The National Guard and the Army Reserve will see a smaller expansion.<ref>{{cite web|url=http://www.foxbusiness.com/features/2017/06/06/army-offers-up-to-90k-bonuses-to-lure-troops-back.html|title=Army offers up to $90K bonuses to lure troops back|date=6 June 2017|website=Foxbusiness.com}}</ref><ref>{{cite web|url=http://www.daily-chronicle.com/2017/06/07/needing-troops-u-s-army-offers-up-to-90k-bonuses-to-re-enlist/ae1ebzz/|title=Needing troops, U.S. Army offers up to $90K bonuses to re-enlist|website=Daily-chronicle.com|access-date=2 November 2017|archive-date=11 October 2017|archive-url=https://web.archive.org/web/20171011170803/http://www.daily-chronicle.com/2017/06/07/needing-troops-u-s-army-offers-up-to-90k-bonuses-to-re-enlist/ae1ebzz/|url-status=dead}}</ref>

The Army's maneuver organization was most recently altered by the reorganization of [[United States Army Alaska]] into the [[11th Airborne Division (United States)|11th Airborne Division]], transferring the 1st and 4th Brigade Combat Teams of the [[25th Infantry Division (United States)|25th Infantry Division]] under a separate operational headquarters to reflect the brigades' distinct, Arctic-oriented mission. As part of the reorganization, the 1–11 (formerly 1–25) Stryker Brigade Combat Team will reorganize as an Infantry Brigade Combat Team.<ref>{{Cite web |title=Army Resurrects WWII-Era Airborne Division in Alaska |url=https://www.voanews.com/a/army-resurrects-wwii-era-airborne-division-in-alaska-/6606224.html |access-date=7 June 2022 |website=VOA |date=6 June 2022 |language=en}}</ref> Following this transition, the active component BCTs will number 11 Armored brigades, 6 Stryker brigades, and 14 Infantry brigades.

Within the Army National Guard and United States Army Reserve, there are a further eight divisions, 27 brigade combat teams, additional combat support and combat service support brigades, and independent cavalry, infantry, artillery, aviation, engineer and support battalions. The Army Reserve in particular provides virtually all psychological operations and civil affairs units.

[[File:United States Army Forces Command SSI.svg|25px]] [[United States Army Forces Command]] (FORSCOM)
{|class="wikitable"
|-
!Direct reporting units
!Current commander
!Location of headquarters{{efn|name=renaming|1= On 5 January 2023 William A. LaPlante, US under-secretary of defense for acquisition and sustainment ([[Under Secretary of Defense for Acquisition and Sustainment|USD (A&<span class="ltr">S</span>)]]) directed the full implementation of the recommendations of [[the Naming Commission]], DoD-wide.<ref name= namingBegins >{{Cite web|url=https://www.defense.gov/News/Transcripts/Transcript/Article/3260496/pentagon-press-secretary-air-force-brig-gen-pat-ryder-holds-an-on-camera-press/https%3A%2F%2Fwww.defense.gov%2FNews%2FTranscripts%2FTranscript%2FArticle%2F3260496%2Fpentagon-press-secretary-air-force-brig-gen-pat-ryder-holds-an-on-camera-press%2F|title=Pentagon Press Secretary Air Force Brig. Gen. Pat Ryder Holds an On-Camera Press Briefing|website=U.S. Department of Defense}}</ref>}}
|-
|[[File:U.S. I Corps CSIB.svg|20px]] [[I Corps (United States)|I Corps]] || LTG [[Xavier T. Brunson]] || [[Joint Base Lewis-McChord]], [[Washington (state)|Washington]]
|-
|[[File:3 Corps Shoulder Sleeve Insignia.svg|20px]] [[III Armored Corps]] || LTG [[Sean Bernabe]] || [[Fort Cavazos]], [[Texas]]
|-
|[[File:V Corps.svg|20px]] [[V Corps (United States)|V Corps]] || LTG [[John S. Kolasheski]] || [[Fort Knox]], [[Kentucky]]
|-
|[[File:XVIII Airborne Corps CSIB.svg|20px]] [[XVIII Airborne Corps]] || LTG [[Christopher T. Donahue]] || [[Fort Liberty]], [[North Carolina]]
|-
|[[File:1st Army.svg|20px]] [[First United States Army|First Army]]<ref>{{cite web|url=http://www.first.army.mil/content.aspx?ContentID=199|title=First Army – Mission|work=army.mil|access-date=1 April 2015|archive-url=https://web.archive.org/web/20150307234001/http://www.first.army.mil/content.aspx?ContentID=199|archive-date=7 March 2015|url-status=dead}}</ref>|| MG [[Mark Landes]] Acting || [[Rock Island Arsenal]], [[Rock Island, Illinois|Illinois]]
|-
|[[File:US Army Reserve Command SSI.svg|20px]] [[United States Army Reserve Command|U.S. Army Reserve Command]]<ref>{{cite web|url=http://www.apd.army.mil/pdffiles/go1102.pdf |title=Redesignation and Assignment of the United States Army Reserve Command as a Subordinate Command of the United States Army Forces Command |access-date=2 February 2015 |url-status=dead |archive-url=https://web.archive.org/web/20150923172654/http://www.apd.army.mil/pdffiles/go1102.pdf |archive-date=23 September 2015}}</ref> || LTG [[Jody J. Daniels]] || Fort Liberty, North Carolina
|-
|[[File:US Army Security Force Assistance Brigade SSI.png|20px]] [[Security Force Assistance Command]] || MG [[Donn H. Hill]] || Fort Liberty, North Carolina
|-
|[[File:20th CBRNE Logo.jpg|20px]] [[20th CBRNE Command]] || BG Daryl O. Hood || [[Aberdeen Proving Ground]], [[Maryland]]
|-
|[[File:32aamdc.svg|20px]] [[32nd Army Air and Missile Defense Command]] || BG David F. Stewart || [[Fort Bliss]], Texas
|-
|[[File:US Army Air Traffic Services Command SSI.png|20px]] U.S. Army Air Traffic Services Command || COL Jason T. Cook || [[Fort Novosel]], [[Alabama]]
|}
{|class="wikitable"
|-
!colspan="4"|Active combat maneuver units
|-
!scope="col" style="width:150px"|Name !! Headquarters !! Subunits !! Subordinate to
|-
|width=200|[[File:United States Army 1st Armored Division CSIB.svg|25px|left]] [[1st Armored Division (United States)|1st Armored Division]]
|[[Fort Bliss]], [[Texas]]
|3 armored BCTs (ABCTs),<ref name="ready1st2019">{{Cite web |url=http://fortblissbugle.com/2019/06/12/ready-first-gets-an-a-1st-sbct-to-become-1st-abct-june-20-infantry-battalions-to-reflag/ |title='Ready First' gets an A: 1st SBCT to become 1st ABCT June 20, infantry battalions to reflag – Fort Bliss Bugle |access-date=18 June 2019 |archive-url=https://web.archive.org/web/20190617134024/http://fortblissbugle.com/2019/06/12/ready-first-gets-an-a-1st-sbct-to-become-1st-abct-june-20-infantry-battalions-to-reflag/ |archive-date=17 June 2019 |url-status=dead}}</ref> 1 Division Artillery ([[1st Armored Division Artillery (United States)|DIVARTY]]), 1 [[Combat Aviation Brigade]] (CAB), and 1 [[sustainment brigade]]
|III Corps
|-
|[[File:1 Cav Shoulder Insignia.svg|20px|left]] [[1st Cavalry Division (United States)|1st Cavalry Division]]
|[[Fort Cavazos]], Texas
|3 armored BCTs, 1 [[1st Cavalry Division Artillery (United States)|DIVARTY]], 1 CAB, and 1 sustainment brigade
|III Corps
|-
|[[File:1st US Infantry Division.svg|20px]] [[1st Infantry Division (United States)|1st Infantry Division]]
|[[Fort Riley]], [[Kansas]]
|2 armored BCTs, 1 [[1st Infantry Division Artillery (United States)|DIVARTY]], 1 CAB, and 1 sustainment brigade
|III Corps
|-
|[[File:2nd Infantry Division SSI (full color).svg|20px|left]] [[2nd Infantry Division (United States)|2nd Infantry Division]]
|[[Camp Humphreys]], [[South Korea]] <br />[[Joint Base Lewis–McChord]], [[Washington (state)|Washington]]
|2 Stryker BCTs, 1 mechanized brigade from the [[8th Infantry Division (South Korea)|ROK Army]],<ref>{{cite web|url=http://www.armytimes.com/story/military/2015/01/14/south-korean-troops-form-combined-division-with-us-army-2nd-infantry-korea-combined-division/21748841/|title=South Korean troops form combined division with U.S. Army|date=14 January 2015|work=Army Times|access-date=13 November 2015}}</ref> 1 [[2nd Infantry Division Artillery (United States)|DIVARTY]] (under administrative control of 7th ID), 1 sustainment brigade, and a stateside Stryker BCT from another active division that is rotated in on a regular basis.
|I Corps (CONUS) <br />Eighth Army (OCONUS)
|-
|width=280|[[File:US 2nd Cavalry Regiment SSI.jpg|20px|left]] [[2nd Cavalry Regiment (United States)|2nd Cavalry Regiment]]
|[[U.S. Army Garrison Bavaria#Rose Barracks - Vilseck|Rose Barracks]], [[Vilseck, Germany]]
|4 Stryker squadrons, 1 engineer squadron, 1 fires squadron, and 1 support squadron
|[[United States Army Europe|U.S. Army Europe and Africa]]
|-
|[[File:United States Army 3rd Infantry Division SSI (1918-2015).svg|20px|left]] [[3rd Infantry Division (United States)|3rd Infantry Division]]
|[[Fort Stewart]], [[Georgia (U.S. state)|Georgia]]
| 2 armored BCT, 1 DIVARTY, 1 CAB, and 1 sustainment brigade as well as the [[48th Infantry Brigade Combat Team|48th Infantry BCT]] of the [[Georgia Army National Guard]]
|XVIII Airborne Corps
|-
|[[File:3dACRSSI.PNG|20px|left]] [[3rd Cavalry Regiment (United States)|3rd Cavalry Regiment]]
|Fort Cavazos, Texas
|4 Stryker squadrons, 1 fires squadron, 1 engineer squadron, and 1 support squadron (overseen by the 1st Cavalry Division)<ref>[https://www.armytimes.com/story/military/careers/army/2016/03/02/army-announces-afghanistan-deployment-1000-soldiers/81207454/ Army announces Afghanistan deployment for 1,000 soldiers], ArmyTimes, by Michelle Tan, dated 2 March 2016, last accessed 3 October 2016</ref>
|III Corps
|-
|[[File:4th Infantry Division SSI.svg|20px|left]] [[4th Infantry Division (United States)|4th Infantry Division]]
|[[Fort Carson]], [[Colorado]]
|2 Stryker BCT, 1 armored BCT, [[2nd Infantry Division Artillery (United States)|DIVARTY]], 1 CAB, and 1 sustainment brigade
|III Corps
|-
|[[File:10th Mountain Division SSI.svg|20px|left]] [[10th Mountain Division (United States)|10th Mountain Division]]
|[[Fort Drum]], [[New York (state)|New York]]
|3 infantry BCTs, 1 [[10th Mountain Division Artillery (United States)|DIVARTY]], 1 CAB, and 1 sustainment brigade
|XVIII Airborne Corps
|-
|[[File:11th Airborne Division Insignia 2022.png|20px|left]] [[11th Airborne Division]]
|[[Joint Base Elmendorf–Richardson]], [[Alaska]]
|1 airborne infantry BCT, 1 infantry BCT, 2 attached aviation battalions, and 1 sustainment battalion
|I Corps
|-
|[[File:25th Infantry Division CSIB.svg|20px|left]] [[25th Infantry Division (United States)|25th Infantry Division]]
|[[Schofield Barracks]], [[Hawaii]]
|2 infantry BCTs, 1 DIVARTY, 1 CAB, and 1 sustainment brigade
|I Corps
|-
|[[File:82 ABD SSI.svg|20px|left]] [[82nd Airborne Division]]
|[[Fort Liberty]], [[North Carolina]]
|3 airborne infantry BCTs, 1 airborne [[82nd Airborne Division Artillery|DIVARTY]], 1 airborne CAB, and 1 airborne sustainment brigade
|XVIII Airborne Corps
|-
|[[File:US 101st Airborne Division patch.svg|20px|left]] [[101st Airborne Division (Air Assault)]]
|[[Fort Campbell]], [[Kentucky]]
|3 infantry BCTs, 1 DIVARTY, 1 CAB, and 1 sustainment brigade
|XVIII Airborne Corps
|-
|[[File:173Airborne Brigade Shoulder Patch.png|22px|left]] [[173rd Airborne Brigade]]
|[[Caserma Ederle|Camp Ederle]], [[Vicenza]], [[Italy]]
|3 airborne infantry battalions (including [[143rd Infantry Regiment (United States)|1st Battalion, 143rd Infantry Regiment]] of the [[Texas Army National Guard|Texas]] and [[Rhode Island Army National Guard]]), 1 airborne field artillery battalion, 1 airborne cavalry squadron, 1 airborne engineer battalion,<ref>{{cite web|url=http://www.eur.army.mil/SkySoldiers/STB/index.html|title=173rd Airborne Brigade Site Redirect|access-date=13 December 2016|archive-url=https://web.archive.org/web/20171011170801/http://www.eur.army.mil/SkySoldiers/STB/index.html|archive-date=11 October 2017|url-status=dead}}</ref> and 1 airborne support battalion
|U.S. Army Europe and Africa
|}
{|class="wikitable"
|-
!colspan="3"|[[File:Seal of the Army National Guard.png|25px]] Combat maneuver units under the Army National Guard until federalized
|-
!scope="col" style="width:150px"|Name !! Locations !! Subunits
|-
|width=200|[[File:28th Infantry Division SSI (1918-2015).svg|20px|left]] [[28th Infantry Division (United States)|28th Infantry Division]]
|[[Pennsylvania]], [[Ohio]] and [[Maryland]]
|[[2nd Infantry Brigade Combat Team (28th Division)|2nd Infantry BCT]], [[56th Stryker Brigade Combat Team|56th Stryker BCT]], [[28th Expeditionary Combat Aviation Brigade|28th CAB]], [[File:US Army 55th Maneuver Enhancement Brigade.png|20px]] [[55th Maneuver Enhancement Brigade]] (MEB),<ref>[https://www.pa.ng.mil/Army-National-Guard/28th-Infantry-Division/ 28th Infantry Division], Pennsylvania National Guard official website, last accessed 4 December 2020</ref> and the [[371st Sustainment Brigade (United States)|28th Infantry Division Sustainment Brigade (<span class="ltr">SB</span>)]]
|-
|[[File:29th Infantry Division SSI.svg|20px|left]] [[29th Infantry Division (United States)|29th Infantry Division]]
|[[Virginia]], Maryland, [[North Carolina]] and [[Florida]]
|[[File:30th Infantry Division SSI.svg|15px]] [[30th Heavy Brigade Combat Team|30th Armored BCT]], [[File:53rd Infantry Brigade SSI.svg|15px]] [[53rd Infantry Brigade Combat Team (United States)|53rd Infantry BCT]], [[116th Infantry Brigade Combat Team (United States)|116th Infantry BCT]], 29th CAB, [[File:142FABdeSSI.svg|20px]] [[142nd Field Artillery Regiment]], [[113th Sustainment Brigade (United States)|29th Infantry Division SB]], and the [[File:226MnvrEnhance.jpg|15px]] 226th MEB<ref>[https://va.ng.mil/Army-Guard/29th-ID/ 29th Infantry Division], Virginia National Guard official homepage, last accessed 4 December 2020</ref>
|-
|[[File:34th 'Red Bull' Infantry Division SSI.svg|22px|left]] [[34th Infantry Division (United States)|34th Infantry Division]]
|[[Minnesota]], [[Wisconsin]], [[Iowa]] and [[Idaho]]
|[[1st Armored Brigade Combat Team (34th Division)|1st Armored BCT]], [[2nd Infantry Brigade Combat Team (34th Division)|2nd Infantry BCT]], [[File:32nd infantry division shoulder patch.svg|11px]] [[32nd Infantry Brigade Combat Team (United States)|32nd Infantry BCT]], [[File:116th Cavalry Brigade CSIB.svg|20px]] [[116th Cavalry Brigade Combat Team|116th Cavalry BCT]], [[File:115FABdeSSI.png|20px]] [[115th Field Artillery Brigade]], [[34th Aviation Brigade (United States)|34th CAB]], [[108th Sustainment Brigade (United States)|34th Infantry Division SB]], and the [[File:57th Field Artillery Brigade SSI.svg|15px]] [[157th Maneuver Enhancement Brigade|157th MEB]]
|-
|[[File:35th Infantry Division SSI.svg|20px|left]] [[35th Infantry Division (United States)|35th Infantry Division]]
|[[Kansas]], [[Missouri]], [[Illinois]], [[Oklahoma]], [[Georgia (U.S. state)|Georgia]], [[Arkansas]], and [[Nebraska]]
|[[File:33rd Infantry Division SSI.svg|20px]] [[33rd Infantry Brigade Combat Team (United States)|33rd Infantry BCT]], [[File:USArmy 39th Inf Brig Patch.svg|15px]] [[39th Infantry Brigade Combat Team (United States)|39th Infantry BCT]], [[File:45thIBCTSSI.png|20px]] [[45th Infantry Brigade Combat Team (United States)|45th Infantry BCT]], [[File:130FABdeSSI.svg|15px]] [[130th Field Artillery Brigade]], [[35th Combat Aviation Brigade (United States)|35th CAB]], and the [[File:67th Infantry Brigade SSI.svg|15px]] [[67th Maneuver Enhancement Brigade|67th MEB]]
|-
|[[File:36th Infantry Division SSI.png|20px|left]] [[36th Infantry Division (United States)|36th Infantry Division]]
|[[Texas]], [[Louisiana]] and [[Mississippi]]
|[[56th Infantry Brigade Combat Team (United States)|56th Infantry BCT]], [[72nd Infantry Brigade Combat Team (United States)|72nd Infantry BCT]], [[File:256 INF BRGDE SSI.svg|15px]] [[256th Infantry Brigade Combat Team (United States)|256th Infantry BCT]], [[File:155th Armored Brigade Combat Team CSIB.svg|15px]] [[155th Brigade Combat Team (United States)|155th Armored BCT]], [[File:US278ACRSSI.svg|20px]] [[278th Armored Cavalry Regiment]], [[Task Force Mustang|36th CAB]], 36th Infantry Division SB, and the [[File:136th MEB.png|15px]] 136th MEB
|-
|[[File:38th Infantry Division SSI.svg|20px|left]] [[38th Infantry Division (United States)|38th Infantry Division]]
|[[Indiana]], [[Michigan]], Ohio and [[Tennessee]]
|[[File:37th Infantry Brigade SSI.svg|20px]] [[37th Infantry Brigade Combat Team (United States)|37th Infantry BCT]], [[File:76th IBCT shoulder sleeve insignia.jpg|17px]] [[76th Infantry Brigade Combat Team (United States)|76th Infantry BCT]], [[File:138FABdeSSI.svg|15px]] [[138th Field Artillery Brigade]], 38th CAB, [[38th Sustainment Brigade|38th Infantry Division SB]], and the [[File:149th Armored Brigade CSIB.svg|15px]] [[149th Maneuver Enhancement Brigade|149th MEB]]
|-
|[[File:40th Infantry Division CSIB.svg|20px|left]] [[40th Infantry Division (United States)|40th Infantry Division]]
|[[Arizona]], [[California]], [[Hawaii]], [[Oregon]], and [[Washington (state)|Washington]]
|[[File:29th Infantry Brigade SSI.svg|15px]] [[29th Infantry Brigade Combat Team (United States)|29th Infantry BCT]], [[File:41st Infantry Division SSI.svg|20px]] [[41st Infantry Brigade Combat Team (United States)|41st Infantry BCT]], [[File:79 Infantry Brigade Combat Team insignia.svg|15px]] [[79th Infantry Brigade Combat Team (United States)|79th Infantry BCT]], [[File:81st ABCT Unit Insignia.svg|20px]] [[81st Stryker Brigade Combat Team|81st Stryker BCT]], 40th CAB, and the [[224th Sustainment Brigade (United States)|40th Infantry Division SB]]
|-
|[[File:42nd Infantry Division SSI.svg|20px|left]] [[42nd Infantry Division (United States)|42nd Infantry Division]]
|[[Connecticut]], [[Maine]], [[Maryland]], [[Massachusetts]], [[New Hampshire]], [[New Jersey]], [[New York (state)|New York]], [[Rhode Island]], and [[Vermont]]
|[[File:27th Infantry Division SSI.svg|20px]] [[27th Infantry Brigade Combat Team (United States)|27th Infantry BCT]], [[File:US Army 44th Infantry Division SSI.png|20px]] [[44th Infantry Brigade Combat Team|44th Infantry BCT]], [[File:86th BCT (MTN).jpg|18px]] [[86th Infantry Brigade Combat Team|86th Infantry BCT (Mountain)]], [[File:197th FA Brigade patch.png|15px]] [[197th Field Artillery Brigade]], [[42nd Combat Aviation Brigade|42nd CAB]], [[369th Sustainment Brigade (United States)|42nd Infantry Division SB]], and the [[File:Yankee Division.svg|18px]] [[26th Maneuver Enhancement Brigade|26th MEB]]
|}
''For a description of U.S. Army tactical organizational structure, see: a [[Structure of the United States Army#Operational|U.S. context]] and also a [[Military organization#Modern hierarchy|global context]].''

==Medical Department==
{{main|Army Medical Department (United States)}}

The [[Army Medical Department (United States)|United States Army Medical Department]] (AMEDD), formerly the Army Medical Service (AMS), is the primary healthcare organization of the United States Army and is led by the [[Surgeon General of the United States Army]] (TSG), a three-star [[Lieutenant general (United States)|lieutenant general]], who (by policy) also serves as the Commanding General, [[United States Army Medical Command]] (MEDCOM). TSG is assisted by a Deputy Surgeon General and a full staff, the Office of the Surgeon General (OTSG). The incumbent Surgeon General is Lieutenant General [[Mary Krueger|Mary K. Izaguirre]] (since January 25, 2024).

AMEDD encompasses the Army's six non-combat, medical-focused specialty branches (or "Corps"), these branches are: the [[United States Army Medical Corps|Medical Corps]], [[United States Army Nurse Corps|Nurse Corps]], [[Army Medical Department (United States)|Dental Corps]], [[United States Army Veterinary Corps|Veterinary Corps]], [[Army Medical Department (United States)|Medical Specialist Corps]], [[Army Medical Department (United States)|Medical Specialist Corps]]. Each of these branches is headed by a Corps Chief that reports directly to the Surgeon General.

==Special operations forces==
{{main|Army Special Operations Command}}

[[File:US Army Special Operations Command SSI.svg|25px]] [[United States Army Special Operations Command]] (Airborne) (USASOC):<ref name="RSOF Fact Book 2018">[http://www.soc.mil/USASOCHQ/USASOCHQFactSheet.html Army Special Operations Forces Fact Book 2018] {{Webarchive|url=https://web.archive.org/web/20161019193907/http://www.soc.mil/USASOCHQ/USASOCHQFactSheet.html |date=19 October 2016}}, USASOC official website, dated 2018, last accessed 28 July 2019</ref>
{|class="wikitable"
|-
!Name !! Headquarters{{efn|name=renaming}} !! Structure and purpose
|-
|width=225|[[File:US Army Special Forces SSI.png|25px|left]] [[1st Special Forces Command (Airborne)|1st Special Forces Command]]
|[[Fort Liberty]] (formerly Bragg), North Carolina
|Manages seven special forces groups designed to deploy and execute nine doctrinal missions: [[unconventional warfare]], [[foreign internal defense]], [[direct action (military)|direct action]], [[counter-insurgency]], [[special reconnaissance]], [[counter-terrorism]], [[information operations]], [[counterproliferation]] of [[weapon of mass destruction]], and [[Security Force Assistance Brigade#Overview|security force assistance]].  The command also manages two [[Psychological operations (United States)|psychological operations]] groups—tasked to work with foreign nations to induce or reinforce behavior favorable to U.S. objectives—a [[95th Civil Affairs Brigade|civil affairs brigade]]—that enables military commanders and [[Ambassadors of the United States|U.S. ambassadors]] to improve relationships with various stakeholders via five battalions—and a [[528th Sustainment Brigade (United States)|sustainment brigade]]—that provides combat service support and combat health support units via three distinct battalions.
|-
|[[File:U.S. Army Special Operations Aviation Command SSI (2013-2015).png|25px|left]] [[U.S. Army Special Operations Aviation Command (USASOAC)|Army Special Operations Aviation Command]]
|[[Fort Liberty]], [[North Carolina]]
|Commands, organizes, mans, trains, resources, and equips Army special operations aviation units to provide responsive, special operations aviation support to special operations forces consisting of five units, including the [[160th Special Operations Aviation Regiment (United States)|160th Special Operations Aviation Regiment (Airborne)]].
|-
|[[File:75 Ranger Regiment Shoulder Sleeve Insignia.svg|30px|left]] [[75th Ranger Regiment (United States)|75th Ranger Regiment]]
|[[Fort Moore]] (formerly Benning), Georgia
|In addition to a regimental headquarters, a special troops battalion, and a military intelligence battalion, the 75th Ranger Regiment has three maneuver battalions of elite airborne infantry specializing in large-scale, joint forcible entry operations and precision targeting raids.  Additional capabilities include [[special reconnaissance]], [[air assault]], and direct action raids seizing key terrain such as airfields, destroying or securing strategic facilities, and capturing or killing enemies of the Nation.  The Regiment also helps develop the equipment, technologies, training, and readiness that bridge the gap between special operations and traditional combat maneuver organizations.
|-
|[[File:JFKSWCS SSI.gif|25px|left]] [[John F. Kennedy Special Warfare Center and School]]
|[[Fort Liberty]], [[North Carolina]]
|Selects and trains special forces, civil affairs, and psychological operations soldiers consisting of two groups and other various training units and offices.
|-
|[[File:US Army Special Operations Command SSI.svg|25px|left]] [[Delta Force|1st Special Forces Operational Detachment-Delta]]
|[[Fort Liberty]], [[North Carolina]]
|Commonly referred to as Delta Force, Combat Applications Group (CAG), "The Unit", Army Compartmented Element (ACE), or Task Force Green, SFOD–D is the U.S. Army's Tier 1 [[Special Mission Unit]] tasked with performing the most complex, classified, and dangerous missions directed by the [[National Command Authority (United States)|National Command Authority]].  Under the control of [[Joint Special Operations Command]], SFOD–D specializes in [[hostage|hostage rescue]], [[counter-terrorism]], [[direct action (military)|direct action]], and [[special reconnaissance]] against [[high-value target]]s via eight squadrons: four assault, one aviation, one clandestine, one combat support, and one nuclear disposal.<ref>{{Cite web|url=https://nationalinterest.org/blog/buzz/us-armys-delta-force-how-secret-group-deadly-soldiers-came-be-55057|title=The U.S. Army's Delta Force: How This Secret Group of Deadly Soldiers Came to Be|date=30 April 2019|website=The National Interest}}</ref><ref>{{cite book |first=Sean |last=Naylor |title=Relentless Strike: The Secret History of Joint Special Operations Command |publisher=St. Martin's Press |year=2015 |isbn= 9781466876224|pages=73, 122, 201, 222, 476|url=https://books.google.com/books?id=oWiWBgAAQBAJ&pg=PT454}}</ref>
|}

==Personnel==
{{see also|List of ranks used by the United States Army}}
The Army's Talent Management Task Force (TMTF) has deployed IPPS-A,<ref name= ipps-a>{{cite web |url= https://ipps-a.army.mil/ |title= Integrated Personnel and Pay System – Army}}</ref> the [[Integrated Personnel and Pay System - Army]], an app which serves the National Guard, and on 17 January 2023 the Army Reserve and Active Army.<ref name= golive >IPPS-A [https://ipps-a.army.mil/ (17 January 2023) Release 3 is Live for all component users!!]</ref> Soldiers were reminded to update their information using the legacy systems to keep their payroll and personnel information current by December 2021. IPPS-A is the Human Resources system for the Army, is now available for download for Android, or the Apple store.<ref name= ipps-aApple>[https://www.army.mil/article/247107/new_army_pay_personnel_mobile_app Army Public Affairs(2 Jun 2021) New Army pay, personnel mobile app] and [https://ipps-a.army.mil/wp-content/uploads/IPPS-ALive_29Mar_FINAL.pdf unifies unit and location information for all Soldiers] {{Webarchive|url=https://web.archive.org/web/20210609062525/https://ipps-a.army.mil/wp-content/uploads/IPPS-ALive_29Mar_FINAL.pdf |date=9 June 2021 }} using Army Organization Server data interface (AOSDI), unified with IPPS-A on the back-end. This allows aggregation of data on ACOM/ASCC, Corps, Division, Brigade, Battalion, Company, Platoon, and Squad levels</ref> It will be used for future promotions and other personnel decisions. Among the changes are:
* BCAP, the Battalion Commander Assessment Program. In January 2020, over 800 majors and lieutenant colonels from all over the Army converged on Fort Knox to take part in a five-day program to select the next battalion commanders for the Army (beginning in FY2021). This process replaces the former selection process which was based solely on rank and individual reviews of past performance. From now on, more consideration will be given to an individual officer's personal preference, as part of 25 other selection criteria.<ref>{{cite web |url= https://federalnewsnetwork.com/army/2019/10/army-debuts-new-system-to-pick-commanders-amid-new-focus-on-talent-management/ |title= Jared Serbu (16 October 2019) Army debuts new system to pick commanders amid focus on talent management |date= 16 October 2019}}</ref> "Promotion boards will now be able to see almost all substantiated adverse information".<ref name= adverseInfo /> The promotion boards will be able to see anything in an officer's human resource record. Officers are encouraged to become familiar with their human resource record, and to file rebuttals to adverse information.<ref name= adverseInfo >{{Cite web |url=https://www.army.mil/article/246156/promotion_boards_to_receive_adverse_information_earlier_when_considering_officers|title=Promotion boards to receive adverse information earlier when considering officers|website= army.mil|date=8 June 2021 }}</ref>
* Depending on the success of this initiative, other assessment programs could be instituted as well, for promotion to sergeants major,<ref name= smap>{{Cite web|url=https://www.army.mil/article/241110/prototype_sergeants_major_assessment_program_at_fort_knox_on_the_right_path|title=Prototype Sergeants Major Assessment Program at Fort Knox on the right path|website= army.mil|date=23 November 2020 }}</ref> and for assessment of colonels for command.<ref name= ccap>{{Cite web|url=https://www.army.mil/article/238143/army_vice_chief_walks_through_brigade_command_program_to_witness_armys_newest_assessment_tool|title=Army vice chief walks through brigade command program to witness Army's newest assessment tool|website= army.mil|date=13 August 2020 }}</ref>

Below are the U.S. Army ranks authorized for use today and their equivalent NATO designations. Although no living officer currently holds the rank of [[General of the Army (United States)|General of the Army]], it is still authorized by Congress for use in wartime.

===Officers===
{{main|United States Army officer rank insignia}}

There are several paths to becoming a [[commissioned officer]]<ref name="futuresoldiers">From the [http://www.futuresoldiers.com/ Future Soldiers] Web Site.</ref> including the [[United States Military Academy]], [[Reserve Officers' Training Corps]], [[Officer Candidate School]], and [[Direct commission officer|direct commission]]ing. Regardless of which road an officer takes, the insignia are the same. Certain professions including physicians, pharmacists, nurses, lawyers and chaplains are commissioned directly into the Army.

Most army commissioned officers (those who are generalists)<ref name=reformers>Freedberg Jr., Sydney (25 October 2017) [https://breakingdefense.com/2017/10/can-the-pentagon-protect-young-innovators/ "Can The Pentagon Protect Young Innovators?"]</ref> are promoted based on an "up or out" system. A more flexible talent management process is underway.<ref name=reformers /> The [[Defense Officer Personnel Management Act]] of 1980 establishes rules for the timing of promotions and limits the number of officers that can serve at any given time.

Army regulations call for addressing all personnel with the rank of general as "General (last name)" regardless of the number of stars. Likewise, both colonels and lieutenant colonels are addressed as "Colonel (last name)" and first and second lieutenants as "Lieutenant (last name)".<ref name=ar600>{{cite web|url=http://www.apd.army.mil/pdffiles/r600_20.pdf|title=Army Regulation 600–20|access-date=2 May 2016}}</ref>

{{US Army Officer|short=yes}}

===Warrant officers===
{{main|Warrant officer (United States)}}

[[Warrant officer (United States)|Warrant officers]]<ref name="futuresoldiers"/> are single track, specialty officers with subject matter expertise in a particular area. They are initially appointed as warrant officers (in the rank of WO1) by the [[United States Secretary of the Army|secretary of the Army]], but receive their [[Officer (armed forces)#Warrant officers|commission]] upon promotion to chief warrant officer two (CW2).

By regulation, warrant officers are addressed as "Mr. (last name)" or "Ms. (last name)" by senior officers and as "sir" or "ma'am" by all enlisted personnel.<ref name=ar600/> However, many personnel address warrant officers as "Chief (last name)" within their units regardless of rank.

{{US Army Warrant Officer}}

===Enlisted personnel===
{{main|United States Army enlisted rank insignia}}
{{see also|Enlisted rank}}

Sergeants and corporals are referred to as NCOs, short for [[Staff Noncommissioned Officer|non-commissioned officers]].<ref name="futuresoldiers"/><ref name="symbolsandinsig">From the [http://www.army.mil/symbols/enlisteddescriptions.html Enlisted Soldiers Descriptions] Web Site.</ref> This distinguishes corporals from the more numerous specialists who have the same pay grade but do not exercise leadership responsibilities. Beginning in 2021, all corporals will be required to conduct [[structured self-development]] for the NCO ranks, completing the [[basic leader course]] (BLC), or else be laterally assigned as specialists. Specialists who have completed BLC and who have been recommended for promotion will be permitted to wear corporal rank before their recommended promotion as NCOs.<ref name= lacdan>{{cite web| url= https://www.army.mil/article/247183/soldiers_to_pin_on_corporal_after_blc| title= Joseph Lacdan, Army News Service (4 June 2021) Soldiers to pin on corporal after BLC| date= 4 June 2021}}</ref>

Privates and privates first class (E3) are addressed as "Private (last name)", specialists as "Specialist (last name)", corporals as "Corporal (last name)" and sergeants, staff sergeants, sergeants first class and master sergeants all as "Sergeant (last name)". First sergeants are addressed as "First Sergeant (last name)" and sergeants major and command sergeants major are addressed as "Sergeant Major (last name)".<ref name=ar600/>

{{US Army Enlisted}}

===Training===
[[File:Rangers from the 75th Ranger Regiment fast-rope from an MH-47 Chinook during a capabilities exercise.jpg|thumb|right|U.S. Army Rangers practicing [[Fast-roping|fast roping]] techniques from an [[Boeing CH-47 Chinook|MH-47]] during an exercise at [[Fort Liberty]]]]

Training in the U.S. Army is generally divided into two categories – individual and collective. Because of COVID-19 precautions, the first two weeks of [[basic training]] — not including processing and out-processing – incorporate social distancing and indoor desk-oriented training. Once the recruits have tested negative for COVID-19 for two weeks, the remaining 8&nbsp;weeks follow the traditional activities for most recruits,<ref>{{cite web| url= https://www.army.mil/article/235841/brigades_move_to_new_model_for_basic_training| title= Mitch Meador (21 May 2020) Brigades move to new model for basic training| date= 21 May 2020}}</ref> followed by Advanced Individualized Training (AIT) where they receive training for their [[List of United States Army careers|military occupational specialties (MOS)]]. Some individual's MOSs range anywhere from 14 to 20 weeks of One Station Unit Training (OSUT), which combines Basic Training and AIT. The length of AIT school varies by the MOS. The length of time spent in AIT depends on the MOS of the soldier. Certain highly technical MOS training requires many months (e.g., foreign language translators). Depending on the needs of the army, [[United States Army Basic Training#Basic Combat Training|Basic Combat Training]] for combat arms soldiers is conducted at a number of locations, but two of the longest-running are the Armor School and the [[United States Army Infantry School|Infantry School]], both at [[Fort Moore]], Georgia. Sergeant Major of the Army Dailey notes that an infantrymen's pilot program for [[One Station Unit Training]] (OSUT) extends 8 weeks beyond Basic Training and AIT, to 22 weeks. The pilot, designed to boost infantry readiness ended in December 2018. The new Infantry OSUT covered the [[M240]] machine gun as well as the [[M249 light machine gun|M249 squad automatic weapon]].<ref name=m240,249>{{Cite web|url=https://www.army.mil/article/211809/soldiers_train_on_m240_machine_gun_during_22_week_infantry_osut_transformation|title=Soldiers train on M240 machine gun during 22-week Infantry OSUT transformation|website= Army.mil|date=28 September 2018 }}</ref> The redesigned Infantry OSUT started in 2019.<ref name=daileyOSUT>{{Cite web|url=https://www.army.mil/article/207819/sgt_maj_of_the_army_extending_training_would_bolster_readiness_lethality|title=Sgt. Maj. of the Army: Extending training would bolster readiness, lethality|website=Army.mil|date=28 June 2018 }}</ref><ref name=extendedOSUT>{{Cite web|url=https://www.army.mil/article/210695/extended_osut_allows_repetition_to_hone_combat_skills_major_general_says|title=Extended OSUT allows repetition to hone combat skills, major general says|website= Army.mil|date=6 September 2018 }}</ref> Depending on the result of the 2018 pilot, OSUTs could also extend training in other combat arms beyond the infantry.<ref name=daileyOSUT /> One Station Unit Training will be extended to 22 weeks for Armor by Fiscal Year 2021.<ref name=Strategy2018 /> Additional OSUTs are expanding to Cavalry, Engineer, and Military Police (<span class="ltr">MP</span>) in the succeeding Fiscal Years.<ref name= addedOsuts >{{Cite web|url=https://www.army.mil/article/211324/preparing_for_current_and_future_army_drill_sergeant_mission_requirements_through_adaptive_measures|title=Preparing for current and future Army drill sergeant mission requirements through adaptive measures|website= Army.mil|date=25 September 2018 }}</ref>

A new training assignment for junior officers was instituted, that they serve as platoon leaders for Basic Combat Training (BCT) platoons.<ref name=LTsAsBCT/> These lieutenants will assume many of the administrative, logistical, and day-to-day tasks formerly performed by the drill sergeants of those platoons and are expected to "lead, train, and assist with maintaining and enhancing the morale, welfare and readiness" of the drill sergeants and their BCT platoons.<ref name= LTsAsBCT >{{Cite web|url=https://www.army.mil/article/220289/lieutenants_to_become_bct_leaders|title=Lieutenants to become BCT leaders|website= Army.mil|date=15 April 2019 }}</ref> These lieutenants are also expected to stem any inappropriate behaviors they witness in their platoons, to free up the drill sergeants for training.<ref name=LTsAsBCT/>

[[File:101st-Airborne-Soldiers-build-elite-Iraqi-force-with-Ranger-Training-7-480x319.jpg|thumb|left|A trainer with Company A, 1st Battalion 502nd Infantry Regiment, Task Force Strike, [[101st Airborne Division]] assisting Iraqi army ranger students during a room clearing drill at Camp Taji, Iraq on 18 July 2016]]
The [[United States Army Combat Fitness Test]] (ACFT) was introduced in 2018 to 60 battalions spread throughout the Army.<ref name=6acftEvents /> The test and scoring system is the same for all soldiers, regardless of gender.  It takes an hour to complete, including resting periods.<ref name=speed>{{Cite web|url=https://www.army.mil/article/212069/post_gets_look_at_new_fitness_test|title=Post gets look at new fitness test|website= Army.mil|date=4 October 2018 }}</ref> The ACFT supersedes the Army Physical Fitness Test (APFT),<ref name= apftInterimCovid >[https://www.army.mil/article/235907/sma_expects_acft_to_continue_as_planned_in_covid_19_environment Joe Lacdan, Army News Service (22 May 2020) SMA expects ACFT to continue as planned in COVID-19 environment] "Soldiers can use their last APFT score to remain promotion eligible."</ref><ref name=apftUseForRetention>{{Cite web|url=https://armypubs.army.mil/epubs/DR_pubs/DR_a/pdf/web/ARN13963_AD2018_22_Final.pdf|title=Army Directive 2018–22 (8 Nov 2018) Retention Policy for Non-Deployable Soldiers|website=Armypubs.army.mil|access-date=22 July 2019}}</ref><ref>{{Cite web|url=https://www.army.mil/article/213757/non_deployable_directive_to_help_army_work_toward_more_lethal_force|title=Non-deployable directive to help Army work toward more 'lethal' force|website= Army.mil|date=16 November 2018 }}</ref> as being more relevant to survival in combat.<ref name=6acftEvents>{{Cite web|url=https://www.army.mil/article/211748/acft_ensures_soldiers_are_lethal_physically_conditioned|title=ACFT ensures Soldiers are lethal, physically conditioned|website= Army.mil|date=28 September 2018 }}</ref> Six events were determined to better predict which muscle groups of the body were adequately conditioned for combat actions:<ref name=speed /> three deadlifts,<ref>{{Cite web|url=https://www.youtube.com/watch?v=jv96WKme3Mo| archive-url=https://web.archive.org/web/20181226201737/https://www.youtube.com/watch?v=jv96WKme3Mo&gl=US&hl=en| archive-date=26 December 2018 | url-status=dead|title=Army Combat Fitness Test: 3 Repetition Maximum Deadlift (MDL) (Event 1)|date=24 October 2018|via=YouTube}}</ref> a standing power throw of a ten-pound medicine ball,<ref>{{Cite web|url=https://www.youtube.com/watch?v=Y1DXoQ_Vjl8| archive-url=https://web.archive.org/web/20190412132741/https://www.youtube.com/watch?v=Y1DXoQ_Vjl8| archive-date=12 April 2019 | url-status=dead|title=Army Combat Fitness Test: Standing Power Throw (SPT) (Event 2)|date=24 October 2018|via=YouTube}}</ref> hand-release pushups<ref>{{Cite web|url=https://www.youtube.com/watch?v=1jMmXpHktn0 |archive-url=https://ghostarchive.org/varchive/youtube/20211211/1jMmXpHktn0| archive-date=11 December 2021 |url-status=live|title=5 Hand Release Pushup event execution|date=17 May 2019|via=YouTube}}{{cbignore}}</ref> (which replace the traditional pushup), a sprint/drag/carry 250 yard event,<ref>{{Cite web|url=https://www.youtube.com/watch?v=lD-9nPvTNo0| archive-url=https://web.archive.org/web/20190417025926/https://www.youtube.com/watch?v=lD-9nPvTNo0| archive-date=17 April 2019 | url-status=dead|title=Army Combat Fitness Test: Sprint-Drag-Carry (SDC) (Event 4)|date=29 October 2018|via=YouTube}}</ref> three pull-ups with leg tucks (or a plank test in lieu of the leg tuck),<ref>{{cite web| url= https://abcnews.go.com/Politics/wireStory/army-revamps-fitness-exam-kicks-leg-tuck-test-76612138| title= Lolita C Baldor (22 Mar 2021) Army revamps fitness exam, kicks out leg tuck requirement| website= [[ABC News (United States)|ABC News]]}}</ref><ref>{{Cite web|url=https://www.youtube.com/watch?v=Zn3LdsQ-wHg| archive-url=https://web.archive.org/web/20190414034444/https://www.youtube.com/watch?v=Zn3LdsQ-wHg| archive-date=14 April 2019 | url-status=dead|title=Army Combat Fitness Test: Leg Tuck (LTK) (Event 5)|date=24 October 2018|via=YouTube}}</ref> a mandatory rest period, and a two-mile run.<ref name=videoACFT>{{Cite web|url=https://www.youtube.com/watch?v=RnVTW1Lh7zk |archive-url=https://ghostarchive.org/varchive/youtube/20211211/RnVTW1Lh7zk| archive-date=11 December 2021 |url-status=live|title=Army Combat Fitness Test (ACFT)|date=25 July 2018|via=YouTube}}{{cbignore}}</ref> As of 1 October 2020 all soldiers from all three components (Regular Army, Reserve, and National Guard)<ref>[https://www.army.mil/article/221703/secfor_soldiers_crawl_through_acft_familiarization SGT Zach Mott (May 10, 2019) SECFOR Soldiers 'Crawl' Through ACFT Familiarization] SECFOR Soldiers serve as the security force (force protection during a deployment)</ref> are subject to this test.<ref name=allSoldiersOct2020>{{Cite web|url=https://www.army.mil/article/210899/army_secretary_new_fitness_test_measures_combat_readiness|title=Army secretary: New fitness test measures combat readiness|website= Army.mil|date=7 September 2018 }}</ref><ref name= COs,CSMsOnACFT >{{cite web| url= https://www.army.mil/article/224941/pre_command_course_conducts_diagnostic_army_combat_fitness_test| title= Harry Sarles (July 24, 2019) Pre-Command Course conducts diagnostic Army Combat Fitness Test| date= 24 July 2019}}</ref> The ACFT now tests all soldiers in basic training as of October 2020. The ACFT became the official test of record 1 October 2020; before that day every Army unit was required to complete a diagnostic ACFT<ref name= acftKyGuard1st >[https://www.army.mil/article/231357/kentucky_guard_first_to_receive_acft_equipment Maj. Stephen Martin (December 27, 2019) Kentucky Guard first to receive ACFT equipment] "36,608 ACFT sets for the total army by May 15". "The Army is focused on the tactical athlete".
* [https://www.army.mil/article/231568/ny_national_guard_finds_creative_ways_to_train_for_new_fitness_test Staff Sgt. Warren Wright (10 January 2020) NY National Guard finds creative ways to train for new fitness test] "finding creative ways to exercise at home and on their own time"</ref> (All Soldiers with valid APFT scores can use them until March 2022. The Holistic Health and Fitness (H2F) System is one way that soldiers can prepare.).<ref name= grinston2020acft >{{cite web| url= https://www.army.mil/article/236558/sma_takes_to_social_media_addresses_acft_2_0_concerns| title= Thomas Brading, Army News Service (18 June 2020) SMA takes to social media, addresses ACFT 2.0 concerns| date= 18 June 2020}}</ref><ref name= prepForAcft >[https://www.youtube.com/watch?v=eSmvJs9lSGA US Army (2020) US Army soldier prepares for ACFT] Learning how to retrain an injured body; using resistance bands (good for leg tucks); know your limits; use out-training (see video for sample); practice technique (good for deadlift, and power throw)</ref><ref name="h2fColocatesSharp">Haley Britzky [https://taskandpurpose.com/news/army-holistic-health-fitness-82nd-airborne/ (27 Oct 2021) This is the Army's plan to stop physically breaking so many of its soldiers] [[Sexual Harassment/Assault Response & Prevention]] (SHARP) office is located in Falcon [[Holistic Health and Fitness]] Center (H2F) at Fort Liberty</ref> The ACFT movements directly translate to movements on the battlefield.<ref name=extendedOSUT />
Following their basic and advanced training at the individual level, soldiers may choose to continue their training and apply for an "additional skill identifier" (ASI). The ASI allows the army to take a wide-ranging MOS and focus it on a more specific MOS. For example, a combat medic, whose duties are to provide pre-hospital emergency treatment, may receive ASI training to become a cardiovascular specialist, a dialysis specialist, or even a licensed practical nurse. For commissioned officers, training includes pre-commissioning training, known as Basic Officer Leader Course A, either at [[West Point|USMA]] or via [[ROTC]], or by completing [[Officer Candidate School (U.S. Army)|OCS]]. After commissioning, officers undergo branch-specific training at the Basic Officer Leaders Course B, (formerly called Officer Basic Course), which varies in time and location according to their future assignments. Officers will continue to attend standardized training at different stages of their careers.<ref>{{Cite web|url=https://www.army.mil/article/223569/pilot_program_provides_a_new_option_for_army_officers_professional_military_education|title=Pilot program provides a new option for Army officers' professional military education|website= Army.mil|date=25 June 2019 }}</ref>

[[File:Yudh Abhyas 2015 Soldiers familiarize with INSAS 1B1.jpg|thumb|upright=1.1|U.S. Army soldiers familiarizing with the latest INSAS 1B1 during exercise Yudh Abhyas 2015]]
Collective training at the unit level takes place at the unit's assigned station, but the most intensive training at higher echelons is conducted at the three combat training centers (CTC); the [[National Training Center]] (NTC) at [[Fort Irwin]], California, the [[Fort Johnson#JRTC moves to Polk|Joint Readiness Training Center]] (JRTC) at [[Fort Johnson]], Louisiana and the [[Grafenwoehr Training Area|Joint Multinational Training Center]] (JMRC) at the Hohenfels Training Area in [[Hohenfels, Bavaria|Hohenfels and Grafenwöhr]],<ref>{{Cite web|url=https://www.army.mil/article/213003/workshop_guides_future_growth_in_grafenwoehr|title=Workshop guides future growth in Grafenwoehr|website= Army.mil|date=26 October 2018 }}</ref> Germany. [[ARFORGEN|ReARMM]] is the Army Force Generation process approved in 2020 to meet the need to continuously replenish forces for deployment, at unit level and for other echelons as required by the mission. Individual-level replenishment still requires training at a unit level, which is conducted at the continental U.S. (CONUS) replacement center (CRC) at [[Fort Bliss]], in New Mexico and Texas before their individual deployment.<ref>[http://fortblissbugle.com/2017/12/13/conus-replacement-center-receives-new-command/ (13 December 2017) CONUS Replacement Center receives new command] {{Webarchive|url=https://web.archive.org/web/20171214183306/http://fortblissbugle.com/2017/12/13/conus-replacement-center-receives-new-command/ |date=14 December 2017}} CRC 5 transition to CRC 6</ref>

Chief of Staff Milley notes that the Army is suboptimized for training in cold-weather regions, jungles, mountains, or urban areas where in contrast the Army does well when training for deserts or rolling terrain.<ref name=fy2019ArmyTestimony >{{Cite web|url=https://www.youtube.com/watch?v=AIhC4zswW8I |archive-url=https://ghostarchive.org/varchive/youtube/20211211/AIhC4zswW8I| archive-date=11 December 2021 |url-status=live|title=Army Officials Testify on FY 2019 Budget Request|date=16 May 2018|via=YouTube}}{{cbignore}}</ref>{{rp|minute 1:26:00}} Post 9/11, Army unit-level training was for counter-insurgency (COIN); by 2014–2017, training had shifted to decisive action training.<ref name=Ausa2018 >{{Cite web|url=https://www.ausa.org/news/army-updates-mobilization-model|title=Army Updates Mobilization Model|date=8 October 2018|website=Association of the United States Army}}</ref>

==Equipment==
{{main|List of equipment of the United States Army}}

The [[Chief of Staff of the United States Army|chief of staff of the Army]] has identified six modernization priorities, these being (in order): artillery, ground vehicles, aircraft, network, air/missile defense, and soldier lethality.<ref name=asawsh2018>[[ASA(ALT)]] [https://www.army.mil/e2/c/downloads/533115.pdf Weapon Systems Handbook 2018] Page 32 lists how this handbook is organized. 440 pages.</ref>

===Weapons===
[[File:The first of two Terminal High Altitude Area Defense (THAAD) interceptors is launched during a successful intercept test - US Army.jpg|thumb|right|A [[Lockheed Martin]] [[Terminal High Altitude Area Defense|Terminal High Altitude Area Defense (THAAD)]] system used for ballistic missile protection]]

====Individual weapons====
The United States Army employs various weapons to provide light firepower at short ranges. The most common weapon type used by the army is the [[M4 carbine]], a compact variant of the [[M16 rifle]],<ref>[http://www.army.mil/factfiles/equipment/individual/m4.html M4]. U.S. Army Fact Files</ref> along with the 7.62×51mm variant of the [[FN SCAR]] for [[United States Army Rangers|Army Rangers]].Then the future weapon is the M7, which fires a 6.8mm round. The primary sidearm in the U.S. Army is the 9&nbsp;mm [[Beretta M9|M9 pistol]]; the [[M11 pistol]] is also used. Both handguns are to be replaced by the [[SIG Sauer M17|M17]]<ref>{{Cite web |last1=Cox |first1=Matthew |last2=Seck |first2=Hope Hodge |date=20 January 2017 |title=Army Picks Sig Sauer's P320 Handgun to Replace M9 Service Pistol |url=https://www.military.com/daily-news/2017/01/19/army-picks-sig-sauer-replace-m9-service-pistol.html |archive-url=https://web.archive.org/web/20170120065328/https://www.military.com/daily-news/2017/01/19/army-picks-sig-sauer-replace-m9-service-pistol.html |archive-date=20 January 2017 |access-date=22 July 2022 |website=[[Military.com]] |language=en}}</ref> through the [[Modular Handgun System]] program.<ref>[http://www.peosoldier.army.mil/portfolio/#231 Individual Weapons Future Innovations] {{Webarchive|url=https://web.archive.org/web/20140724043400/http://www.peosoldier.army.mil/portfolio/#231 |date=24 July 2014}}, Project Manager Soldier Weapons.</ref> Soldiers are also equipped with various [[hand grenade]]s, such as the [[M67 grenade|M67 fragmentation grenade]] and [[Smoke grenade|M18 smoke grenade]].

Many units are supplemented with a variety of specialized weapons, including the [[M249 light machine gun|M249 SAW]] (Squad Automatic Weapon), to provide suppressive fire at the squad level.<ref>[http://www.army.mil/factfiles/equipment/individual/m249.html M249], U.S. Army Fact Files</ref> Indirect fire is provided by the [[M320 Grenade Launcher Module|M320 grenade launcher]]. The [[Benelli M4 Super 90|M1014 Joint Service Combat Shotgun]] or the [[Mossberg 500#Model 500 vs. Model 590 vs. Model 590A1|Mossberg 590 Shotgun]] are used for [[door breaching]] and close-quarters combat. The [[Mk 14 Enhanced Battle Rifle|M14EBR]] is used by designated marksmen. Snipers use the [[M82 Barrett rifle|M107 Long Range Sniper Rifle]], the [[M2010 Enhanced Sniper Rifle]] and the [[M110 Semi-Automatic Sniper System|M110 Semi-Automatic Sniper Rifle]].

====Crew-served weapons====
The army employs various crew-served weapons to provide heavy firepower at ranges exceeding that of individual weapons.

The [[M240 machine gun|M240]] is the U.S. Army's standard Medium Machine Gun.<ref>[http://www.army.mil/factfiles/equipment/individual/m240b.html M240], U.S. Army Fact Files</ref> The [[M2 Browning machine gun|M2 heavy machine gun]] is generally used as a vehicle-mounted machine gun. In the same way, the 40&nbsp;mm [[Mk 19 grenade launcher|MK 19 grenade machine gun]] is mainly used by motorized units.<ref>[http://www.army.mil/factfiles/equipment/individual/mk193.html MK 19], U.S. Army Fact Files</ref>

The U.S. Army uses three types of [[Mortar (weapon)|mortar]] for indirect fire support when heavier artillery may not be appropriate or available. The smallest of these is the 60&nbsp;mm [[M224 mortar|M224]], normally assigned at the infantry company level.<ref>[http://www.army.mil/factfiles/equipment/indirect/m224.html M224], U.S. Army Fact Files</ref> At the next higher echelon, infantry battalions are typically supported by a section of 81&nbsp;mm [[M252 mortar]]s.<ref>[http://www.army.mil/factfiles/equipment/indirect/m252.html M252], U.S. Army Fact Files</ref> The largest mortar in the army's inventory is the 120&nbsp;mm [[M120 mortar|M120/M121]], usually employed by mechanized units.<ref>[http://www.army.mil/factfiles/equipment/indirect/m120.html M120], U.S. Army Fact Files</ref>

Fire support for light infantry units is provided by towed howitzers, including the 105&nbsp;mm [[M119 howitzer|M119A1]]<ref>[http://www.army.mil/factfiles/equipment/indirect/m119.html M119], U.S. Army Fact Files</ref> and the 155&nbsp;mm [[M777 howitzer|M777]].{{citation needed|date=November 2022}}

The U.S. Army utilizes a variety of direct-fire rockets and missiles to provide infantry with an Anti-Armor Capability. The [[AT4]] is an unguided projectile that can destroy armor and bunkers at ranges up to 500 meters. The [[FIM-92 Stinger]] is a shoulder-launched, heat seeking anti-aircraft missile. The [[FGM-148 Javelin]] and [[BGM-71 TOW]] are anti-tank guided missiles.

===Vehicles===
[[File:Patrol in Iraq, March 2008.jpg|thumb|A U.S. soldier on patrol in Iraq with the support of a [[Humvee]] vehicle]]

U.S. Army doctrine puts a premium on mechanized warfare. It fields the highest vehicle-to-soldier ratio in the world as of 2009.<ref>{{cite book|title=Us Future Combat & Weapon Systems Handbook|date=30 March 2009|publisher=Int'l Business Publications|isbn=978-1-4387-5447-5|page=15|url=https://books.google.com/books?id=lPmVrgeVoI0C&q=M1014%20shotgun%20army&pg=PA15|access-date=12 May 2017}}{{Dead link|date=February 2023 |bot=InternetArchiveBot |fix-attempted=yes }}</ref> The army's most common vehicle is the High Mobility Multipurpose Wheeled Vehicle (HMMWV), commonly called the [[Humvee]], which is capable of serving as a cargo/troop carrier, weapons platform and ambulance, among many other roles.<ref>[http://www.army.mil/factfiles/equipment/wheeled/hmmwv.html HMMWV], U.S. Army Fact Files</ref> While they operate a wide variety of combat support vehicles, one of the most common types centers on the family of [[HEMTT]] vehicles. The [[M1 Abrams|M1A2 Abrams]] is the army's [[main battle tank]],<ref>[http://www.army.mil/factfiles/equipment/tracked/abrams.html Abrams] {{webarchive|url=https://web.archive.org/web/20131115181622/http://www.army.mil/factfiles/equipment/tracked/abrams.html |date=15 November 2013}}, U.S. Army Fact Files</ref> while the [[M2 Bradley|M2A3 Bradley]] is the standard [[infantry fighting vehicle]].<ref>[http://www.army.mil/factfiles/equipment/tracked/bradley.html Bradley], United States Army Fact Files</ref> Other vehicles include the [[Stryker]],<ref>[http://www.army.mil/factfiles/equipment/wheeled/stryker.html Stryker], U.S. Army Fact Files</ref> the [[M113 armored personnel carrier]]<ref>[http://www.army.mil/factfiles/equipment/tracked/m113.html M113], U.S. Army Fact Files</ref> and multiple types of [[MRAP|Mine Resistant Ambush Protected]] (MRAP) vehicles.
[[File:3rd ID M1A1 Abrams TC and Gunner 2008.jpg|thumb|left|[[3rd Infantry Division (United States)|3rd Infantry Division]] soldiers manning an [[M1 Abrams|M1A1 Abrams]] in Iraq]]

The U.S. Army's principal [[artillery]] weapons are the [[M109 Paladin|M109A6 Paladin]] self-propelled howitzer<ref>[http://www.army.mil/factfiles/equipment/indirect/paladin.html Paladin], Army.mil</ref> and the [[M270 Multiple Launch Rocket System]] (MLRS),<ref>[http://www.army.mil/factfiles/equipment/indirect/mlrs.html MLRS], U.S. Army Fact Files</ref> both mounted on tracked platforms and assigned to heavy mechanized units.

===Aviation===
While the [[United States Army Aviation Branch]] operates a few [[fixed-wing aircraft]], it mainly operates several types of rotary-wing aircraft. These include the [[AH-64 Apache]] [[attack helicopter]],<ref>[http://www.army.mil/factfiles/equipment/aircraft/apache.html Apache], U.S. Army Fact Files</ref> the [[UH-60 Black Hawk]] utility tactical transport helicopter<ref>[http://www.army.mil/factfiles/equipment/aircraft/blackhawk.html Blackhawk], U.S. Army Fact Files</ref> and the [[CH-47 Chinook]] heavy-lift transport helicopter.<ref>[http://www.army.mil/factfiles/equipment/aircraft/chinook.html Chinook], U.S. Army Fact Files</ref> Restructuring plans call for reduction of 750 aircraft and from seven to four types.<ref>{{citation|last=Stevenson|first=Beth|url=http://www.flightglobal.com/news/articles/us-army-continues-to-face-financial-challenge-of-rotary-fleet-408160/|title= US Army continues to face financial challenge of rotary fleet maintenance|work=[[Flightglobal]]|publisher=Reed Business Information|date=22 January 2015|access-date=23 January 2015|archive-url=https://web.archive.org/web/20150123011643/http://www.flightglobal.com/news/articles/us-army-continues-to-face-financial-challenge-of-rotary-fleet-408160/|archive-date=23 January 2015|url-status=live}}</ref> The Army is evaluating two fixed-wing aircraft demonstrators; ARES, and Artemis are under evaluation to replace the Guardrail ISR (Intelligence, surveillance and reconnaissance) aircraft.<ref>{{cite web |url= https://www.defensenews.com/industry/2021/08/27/us-armys-recon-electronic-warfare-capable-aircraft-flies-for-the-first-time/ |title= Jrn Judson (27 Aug 2021) US Army's recon, electronic warfare-capable aircraft flies for the first time |date= 27 August 2021}}</ref> Under the [[Johnson-McConnell agreement of 1966]], the Army agreed to limit its fixed-wing aviation role to administrative mission support (light unarmed aircraft which cannot operate from forward positions). For [[UAV]]s, the Army is deploying at least one company of drone [[MQ-1C Gray Eagle]]s to each Active Army division.<ref>{{Cite web|url=https://www.armytimes.com/news/your-army/2015/01/08/army-to-build-dedicated-drone-runway-at-fort-bliss/|title=Army to build dedicated drone runway at Fort Bliss|first=Kyle|last=Jahner|date=7 August 2017|website=Army Times}}</ref>

===Uniforms===
{{main|Uniforms of the United States Army}}
The [[Army Combat Uniform]] (ACU) currently features a camouflage pattern known as [[Operational Camouflage Pattern]] (OCP); OCP replaced a pixel-based pattern known as [[Universal Camouflage Pattern]] (UCP) in 2019.

On 11 November 2018, the Army announced a new version of 'Army Greens' based on uniforms worn during World War II that will become the standard garrison service uniform.<ref name=ArmyGreens>{{Cite web|url=https://www.army.mil/article/213650/us_army_to_roll_out_new_army_greens_uniform|title=U.S. Army to roll out new Army Greens uniform|website= Army.mil|date=11 November 2018 }}</ref> The blue [[Army Service Uniform]] will remain as the dress uniform. The Army Greens are projected to be first fielded in the summer of 2020.<ref name=ArmyGreens />{{update inline|date=May 2022}}

<gallery widths="200px" heights="200px">
File:2020 Army Greens Uniform.png|The 2020 Army Greens uniform
File:2010 Moscow Victory Day Parade-6.jpeg|An element of the [[18th Infantry Regiment (United States)|18th Infantry Regiment]], wearing ASUs, representing the United States at the [[2010 Moscow Victory Day Parade]]
</gallery>

====Berets====
[[File:Wayne Downing funeral honor guard.jpg|thumb|The Ranger Honor Platoon marching in their tan berets and former service uniform]]

The [[United States military beret flash|beret flash]] of enlisted personnel displays their [[distinctive unit insignia]] (shown above). The U.S. Army's black beret is no longer worn with the ACU for garrison duty, having been permanently replaced with the patrol cap. After years of complaints that it was not suited well for most work conditions, Army Chief of Staff General [[Martin Dempsey]] eliminated it for wear with the ACU in June 2011. Soldiers who are currently in a unit in jump status still wear berets, whether the wearer is parachute-qualified or not (maroon beret), while members of [[Security Force Assistance Brigade]]s (SFABs) wear brown berets. Members of the 75th Ranger Regiment and the Airborne and Ranger Training Brigade (tan beret) and Special Forces (rifle green beret) may wear it with the Army Service Uniform for non-ceremonial functions. Unit commanders may still direct the wear of patrol caps in these units in training environments or motor pools.

===Tents===
The Army has relied heavily on [[tent]]s to provide the various facilities needed while on deployment (Force Provider Expeditionary (FPE)).<ref name=asawsh2018 />{{rp|p.146}} The most common tent uses for the military are as temporary [[barracks]] (sleeping quarters), [[Mess#U.S. Army|DFAC]] buildings (dining facilities),<ref>[https://www.army.mil/article/209838/automated_meal_entitlement_system_food_trucks_to_improve_soldier_dining_experience Joe Lacdan (August 13, 2018) Automated meal entitlement system, food trucks to improve Soldier dining experience] Accomplishes paperwork reduction based on reading each soldier's Common Access Card at each use at DFAC.</ref> forward operating bases (FOBs), after-action review (AAR), tactical operations center (TOC), morale, welfare and recreation (MWR) facilities, as well as security checkpoints. Furthermore, most of these tents are set up and operated through the support of [[U.S. Army Soldier Systems Center|Natick Soldier Systems Center]].  Each FPE contains billeting, latrines, showers, laundry and kitchen facilities for 50–150 Soldiers,<ref name=asawsh2018 />{{rp|p.146}} and is stored in [[Reorganization plan of United States Army#Prepositioned stocks|Army Prepositioned Stocks 1, 2, 4 and 5]].  This provisioning allows combatant commanders to position soldiers as required in their [[Area of Responsibility]], within 24 to 48 hours.

The U.S. Army is beginning to use a more modern tent called the [[deployable rapid assembly shelter]] (DRASH). In 2008, DRASH became part of the Army's Standard Integrated Command Post System.<ref name="SICPS">[http://www.upi.com/Business_News/Security-Industry/2008/06/18/NG-DHS-Technologies-to-support-SICPSTMSS/UPI-57811213812923/ NG, DHS Technologies to support SICPS/TMSS] United Press International</ref>
{{clear}}

==See also==
{{div col}}
* ''[[America's Army]]'' (video games for recruitment)
* [[US Army and US Navy stamp issues of 1936-1937|Army and Navy stamp issues of 1936–1937]]
* [[Army CHESS]] (Computer Hardware Enterprise Software and Solutions)
* [[History of the United States Army]]
* [[List of military weapons of the United States]] 
* [[Junior Reserve Officers' Training Corps]]
* [[List of active United States military aircraft]]
* [[List of comparative military ranks]]
* [[List of former United States Army medical units]]
* [[List of wars involving the United States]]
* [[Reorganization plan of United States Army]]
* [[Soldier's Creed]]
* [[Timeline of United States military operations]]
* [[U.S. Army Combat Arms Regimental System]]
* [[U.S. Army Regimental System]]
* [[United States Army Basic Training]]
* [[United States Constabulary]] (United States Gendarmerie)
* [[Vehicle markings of the United States military]]
{{div col end}}

==Notes==
{{Notelist}}

==References==
{{Reflist}}
{{refbegin}}
* {{ACMH|url=http://www.history.army.mil/html/faq/branches.html|article=Army Birthdays}}
{{refend}}

==Further reading==
{{Main list|Bibliography of United States military history}}{{Library resources box}}
* Bailey, Beth. ''America's Army: Making the All-Volunteer Force'' (2009) {{ISBN|0674035364}}
* {{cite book |last=Bluhm |first=Raymond K. Jr. |title=U.S. Army: A Complete History|year=2004|publisher=The Army Historical Foundation|location=Arlington County, Virginia|isbn=978-0-88363-640-4|page=744|edition=Beaux Arts|author2=Andrade, Dale|author3=Jacobs, Bruce|author4=Langellier, John|author5=Newell, Clayton R.|author6= Seelinger, Matthew}}
* Chambers, John Whiteclay, ed. ''The Oxford Guide to American Military History'' (1999), online at many libraries
* Clark, J. P. ''Preparing for War: The Emergence of the Modern U.S. Army, 1815–1917'' (Harvard UP, 2017), 336 pp.
* Coffman, Edward M. ''The War to End All Wars: The American Military Experience in World War I'' (1998), a standard history
* Kretchik, Walter E. ''U.S. Army Doctrine: From the American Revolution to the War on Terror'' (University Press of Kansas; 2011) 392 pages; studies military doctrine in four distinct eras: 1779–1904, 1905–1944, 1944–1962, and 1962 to the present.
* {{cite web |title=Desert Storm/Shield Valorous Unit Award (VUA) Citations|url=http://www.history.army.mil/html/forcestruc/vua_citations.html|publisher=US Army Center of Military History|access-date=26 December 2014|archive-date=13 December 2014|archive-url=https://web.archive.org/web/20141213220502/http://www.history.army.mil/html/forcestruc/vua_citations.html|url-status=dead}}
* Woodward, David R. ''The American Army and the First World War'' (Cambridge University Press, 2014). 484 pp. [http://www.h-net.org/reviews/showpdf.php?id=42718 online review]

==External links==
{{Commons category}}
{{Wikisource|Portal:United States Army|United States Army}}
{{Wikiversity|US Army Branches|United States Army}}
* {{Official website}} 
* [https://www.army.mil/photos Army.mil/photos] – United States Army featured photos
* [http://collections.mohistory.org/search/custom_search?text=Army U.S. Army Collection] ({{Webarchive|url=https://web.archive.org/web/20130702073047/http://collections.mohistory.org/search/custom_search?text=Army |date=2 July 2013 }}) – Missouri History Museum
* [http://www.history.army.mil/reference/Finding%20Aids/research.htm Finding Aids for researching the U.S. Army]. {{Webarchive|url=https://web.archive.org/web/20101109163940/http://www.history.army.mil/reference/Finding%20Aids/research.htm |date=9 November 2010}} (compiled by the [[United States Army Center of Military History]]).
* [https://web.archive.org/web/20121126003035/http://www.us-militaria.com/en US-militaria.com] – The U.S. Army during the Second World War (archived 26 December 2012)

{{US Army navbox}}
{{Navboxes
|list =
{{United States Armed Forces}}
{{United States Department of Defense}}
{{Uniformed services of the United States}}
{{Allied Land Command}}
{{Authority control}}
}}

{{DEFAULTSORT:United States Army}}
[[Category:United States Army| ]]<!-- Please leave the empty space as per [[WP:EPONYMOUS]]. -->
[[Category:1775 establishments in the Thirteen Colonies]]
[[Category:Military units and formations established in 1775]]
[[Category:Uniformed services of the United States]]
[[Category:United States Armed Forces service branches]]