It traces its lineage back to the 1944 formation of the 23rd Chemical Smoke Generator Battalion in England during World War II. The 23rd was inactivated after the end of the war and reactivated in 1949 as the 4th Chemical Smoke Generator Battalion, serving in the Korean War before being inactivated in Germany at the end of the 1950s. The 23rd Chemical Battalion was reactivated in Korea in 1988.
Constituted 27 May 1944 in the Army of the United States as Headquarters and Headquarters Detachment, 23d Chemical Smoke Generator Battalion, and activated in England
Inactivated 12 November 1945 in France
Redesignated 18 January 1949 as Headquarters and Headquarters Detachment, 4th Chemical Smoke Generator Battalion, and allotted to the Regular Army
Activated 1 February 1949 at the Army Chemical Center, Edgewood, Maryland
Reorganized and redesignated 4 March 1954 as Headquarters and Headquarters Detachment, 4th Chemical Battalion
Inactivated 15 June 1959 in Germany
Redesignated 16 September 1988 as Headquarters and Headquarters Detachment, 23d Chemical Battalion, and activated in Korea
In a 4 April 2013 ceremony, the 23d Chemical Battalion was officially transferred back to Korea after spending eight years at Joint Base Lewis–McChord.[1] On 16 October 2016, its headquarters and headquarters detachment was redesignated as a company.[2]