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Many countries historically had only one neighbour. Some no longer exist while others now have either no land borders or borders with more than one nation due to border changes. |
Many countries historically had only one neighbour. Some no longer exist while others now have either no land borders or borders with more than one nation due to border changes. |
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* [[Canada]]: bordered only by the United States until 2022, it now shares a |
* [[Canada]]: bordered only by the United States until 2022, it now shares a short border with the [[Danish Realm|Kingdom of Denmark]] at [[Hans Island]], with Canada’s [[Nunavut]] on one side and Denmark’s [[Greenland]] on the other side. |
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* [[Danish Realm|Kingdom of Denmark]]: bordered only by Germany (with a causeway connecting it to Sweden) until 2022 (the [[Denmark|constituent country of Denmark]] still only borders Germany), it now shares a |
* [[Danish Realm|Kingdom of Denmark]]: bordered only by Germany (with a causeway connecting it to Sweden) until 2022 (the [[Denmark|constituent country of Denmark]] still only borders Germany), it now shares a short border with Canada at Hans Island, with Canada’s Nunavut on one side and Denmark’s Greenland on the other side. |
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* [[Korean Empire|Korea]]: bordered only [[China]] for several hundred years before 1860, after which a second international border with [[Russia]] appeared (approx. {{Convert|17|km||abbr=on}} long), according to the [[Convention of Peking]]. Following the [[division of Korea]] in 1945 only [[North Korea]] now shares this border. |
* [[Korean Empire|Korea]]: bordered only [[China]] for several hundred years before 1860, after which a second international border with [[Russia]] appeared (approx. {{Convert|17|km||abbr=on}} long), according to the [[Convention of Peking]]. Following the [[division of Korea]] in 1945 only [[North Korea]] now shares this border. |
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* [[Ciskei]]: one of the [[Bantustan]]s of [[South Africa]]; created under [[apartheid]], reincorporated on April 27, 1994. |
* [[Ciskei]]: one of the [[Bantustan]]s of [[South Africa]]; created under [[apartheid]], reincorporated on April 27, 1994. |
This is a list of countries that have a land border with only one other country. Some on this list have a maritime border with additional countries. Some countries, which are not listed here, have no land border but do have a maritime border with a single other country, such as Sri Lanka.
There are generally three arrangements by which a country would have a single land border:
Territory leased or ceded by one country to another for perpetual use, but not in sovereignty, such as Guantanamo Bay Naval BaseinCuba, or memorials, such as the American Cemetery in France, do not constitute true territorial borders because the land occupied remains a formal part of the host country.
This list is based on the Correlates of War Direct Contiguity data set, with maritime causeways and bridges not being counted.[1]
Country | Neighbour | Border length | Notes | |
---|---|---|---|---|
km | mi | |||
Lesotho | South Africa | 909 | 565 | Lesotho is an enclave which is entirely surrounded by South Africa. |
San Marino | Italy | 39 | 24 | San Marino is an enclave entirely surrounded by Italy. |
Vatican City | 3.2 | 2.0 | The Vatican City is an enclave entirely surrounded by Rome, Italy. |
Country | Neighbour | Border length | Notes | |
---|---|---|---|---|
km | mi | |||
Brunei | Malaysia | 381 | 237 | Borders the Malaysian state of Sarawak on the island of Borneo. |
Dominican Republic | Haiti | 360 | 220 | On the island of Hispaniola |
The Gambia | Senegal | 740 | 460 | The Republic of the Gambia is bordered to the north, south and east by Senegal. |
Haiti | Dominican Republic | 360 | 220 | On the island of Hispaniola |
Republic of Ireland | United Kingdom | 360 | 220 | The Republic of Ireland borders the United Kingdom's Northern Ireland region on the island of Ireland. |
Monaco | France | 4.4 | 2.7 | |
Papua New Guinea | Indonesia | 820 | 510 | On the island of New Guinea |
Portugal | Spain | 1,214 | 754 | |
Qatar | Saudi Arabia | 60 | 37 | The planned Qatar–Bahrain Causeway would connect Qatar to Bahrain. |
South Korea | North Korea | 238 | 148 | On the Korean Peninsula, at the Demarcation Line. The two countries are separated by a 4 km wide Demilitarized Zone. Both Koreas claim the Korean Peninsula. |
Timor-Leste | Indonesia | 228 | 142 | On the island of Timor. |
United Kingdom | Republic of Ireland | 360 | 220 | On the island of Ireland. The British Overseas TerritoriesofGibraltar and Akrotiri and Dhekelia border Spain and Cyprus respectively, but these territories are not part of the United Kingdom proper (see #Dependent territories section). |
Often called fixed crossings or fixed links, transportation corridors constructed to cross bodies of water without any intermittent connections such as ferries or ships may be between different states. These may be considered artificial "persistent" borderpoints for land vehicles or pedestrians, but are not typically considered land borders given their need for continuous operation and maintenance, as well as their ease of volume control or closure by either state. Two countries are islands and have no land borders, but maintain fixed borderpoints with other nations.
Country | Land neighbour | Borderpoint neighbour | Notes |
---|---|---|---|
United Kingdom | Ireland | France | In addition to its border with Ireland, has a fixed link with France in the Channel Tunnel. |
Denmark | Germany | Sweden | In addition to its border with Germany, also has fixed link with Sweden across the Øresund Bridge. |
Bahrain | None, Since Bahrain is an island. | Saudi Arabia | Although an island nation with no natural land borders, Bahrain maintains persistent connection to Saudi Arabia by the King Fahd CausewayatPassport Island. |
Singapore | None, Since Singapore is cut off by a strait. (Specifically, the Strait of Johor.) | Malaysia | Although an island nation with no natural land borders, Singapore maintains persistent connections to Malaysia by the Johor Causeway and the Malaysia–Singapore Second Link. |
Liechtenstein | Austria | Switzerland | In addition to its land border with Austria, Liechtenstein has five bridges crossing the river Rhine to Switzerland. |
In some cases, a dependent territory of one nation borders another nation.
Territory | Sovereignty | Neighbour | Border length | Notes |
---|---|---|---|---|
km | ||||
Akrotiri and Dhekelia | United Kingdom | Cyprus | 108 | British sovereign base areas, border the Republic of Cyprus. Dhekelia also borders the Turkish Republic of Northern Cyprus, but the latter is recognised only by Turkey. |
French Southern and Antarctic Lands | France | Australia | Adélie Land, France's (largely unrecognised) claim in Antarctica borders only the Australian Antarctic Territory. (It also touches other claims at the South Pole.) | |
Gibraltar | United Kingdom | Spain | 1.2 | ABritish overseas territory, occupies a small peninsula and has a 1.2 km (0.75 mi) land border with Spain. Spain claims some of Gibraltar as its own territory. |
Greenland | Kingdom of Denmark | Canada | 1,280 m | A constituent country of the Kingdom of Denmark, Greenland has had a border dispute with Canada regarding uninhabited Hans Island. The island is located in the centre of the Kennedy ChannelofNares Strait (between Canada's Ellesmere Island and northern Greenland), which constitutes the agreed maritime border. On June 11, 2022, both countries signed an agreement to split the island, which will come into effect as soon as the parliaments of Canada, Denmark, Greenland, and Nunavut ratify it.[2] |
Hong Kong | Hong Kong | China | 33 | Hong Kong, comprising a continental portion and more than 200 islands in the South China Sea, was formerly ceded and leased by Qing China to the British Empire. It was returned to the People's Republic of China in 1997, but has since then operated with its own political system as a special administrative region under the policy of "One Country, Two Systems". The land border and coastline, although no longer one between two states, are still controlled as though Hong Kong were an international exclave. |
Macau | Macau | China | 3 | Macau comprises a peninsula and one island in the South China Sea, 60 km (37 mi) west of Hong Kong, and like Hong Kong was formerly administered by a colonial power (in this case, Portugal) but returned to the People's Republic of China in 1999. It too has its own judicial system and retains border and coastal controls similar to those of an exclave. |
Ross Dependency | New Zealand | Australia | New Zealand's (largely unrecognised) territorial claim in Antarctica borders only the Australian Antarctic Territory and the unclaimed Marie Byrd Land. (It also touches other claims at the South Pole.) | |
Saint Martin | France | Kingdom of the Netherlands | 16 | The island is split between two island territories: the northern half, Saint-Martin, is a French overseas collectivity; the southern half, Sint Maarten, is a constituent country of the Kingdom of the Netherlands. |
Sint Maarten | Kingdom of the Netherlands | France |
Many countries historically had only one neighbour. Some no longer exist while others now have either no land borders or borders with more than one nation due to border changes.