This is a list of proposed state mergers, including both current and historical proposals. The entities listed below differ from separatist movements in that they would form as a merger or union of two or more existing states, territories, colonies, or other regions, becoming either a federation, confederation, or other type of unified sovereign state.
Contents |
| Proposed state | Historic state(s) | Proposed | Successful? | Notes |
|---|---|---|---|---|
| Antillean Confederation | Cuba |
1869 or 1870 | No | Proposed by Ramón Emeterio Betances. |
| Arab Federation | Kingdom of Iraq Jordan |
1958 | Yes (14 February 1958 - 2 August 1958) |
An attempt to unify the two Hashemite kingdoms of Iraq and Jordan. While successful, the short-lived union was disestablished after a military coup deposed King Faisal II of Iraq. |
| Arab Islamic Republic | Tunisia Libya |
1974 | No | Proposed by Muammar al-Gaddafi. |
| Balkan Federation | Yugoslavia Albania Bulgaria |
1910 | No | |
| Federation of Arab Republics | United Arab Republic Also invited: |
1972-1977 | No | An attempt to build a Pan-Arab state. |
| Greek-Serbian federation | FR Yugoslavia Greece Macedonia |
1992-2001 | No | A serious project proposed by Slobodan Milošević in 1992. |
| Greek-Yugoslav confederation | Strictest definition:
Loosest definition also includes: |
1942-1944 | No | |
| Międzymorze |
Belarus |
November or December 1918 | No | Also called "Intermarum". Suggested shortly after World War I to combat the influences of Germany and Russia. |
| North Borneo Federation | Kingdom of Sarawak British North Borneo Protectorate of Brunei |
1956-1960 | No | |
| Peru–Bolivian Confederation | Bolivia Peru |
1829–1839 | Yes (1836–1839) |
|
| Polish-Czechoslovak confederation | Poland Czechoslovakia |
1939–1948 | No | A serious project proposed by Władysław Sikorski. |
| Scandinavia | Denmark Norway Sweden |
Mid-19th Century. | No | |
| Senegambia Confederation | Senegal Gambia |
Between 1 January 1982 and 30 September 1989 | Yes (1 January 1982 - 30 September 1989) |
Loose confederation was formed, but ended due to Gambia's lack of interest in integration. |
| South Slavic Union | South Slavic nations | 19th, 20th century | No | |
| Union of African States | Ghana Guinea Mali |
1958 | Yes (23 November 1958 - 1962) |
The Union fell apart in 1962, when Guinea started to reach out to the United States, against the Marxist leaning of the other partners, who were more oriented towards the Cold War adversary of the U.S., the Soviet Union. |
| United Arab Republic | Egypt Syria |
1958 | Yes (22 February 1958 - 28 September 1961) |
A short-lived Pan-Arab state. |
| United Arab States | United Arab Republic North Yemen |
1958 | Yes (8 March 1958 - 26 December 1961) |
Loose confederation between United Arab Republic and North Yemen. |
| United Cyprus Republic | Northern Cyprus Cyprus |
2004 | No | Rejected in a UN-sponsored referendum, with 64.90% approval from the Turkish Cypriot Community but only 24.17% from the Greek Cypriot Community. |