Short-lived countries

theoretical precursor of a Finnish socialist state

Unrecognized state in Caucasia

political entity in southern Vietnam from 1969 to 1975; provisional government of South Vietnam from 1975 to 1976

former state in Southeast Europe between November 1943 and November 1945

independent self-proclaimed anti-Bolshevik republic formed by the Armed Forces of South Russia on the territory of Don Cossacks against another self-proclaimed Don Soviet Republic

1915–1916 country

former government of Hungary

unrecognised historical state in Africa

former country (1933—1934)

self-declared Soviet republic of the Russian SFSR

unrecognized self-declared secessionist state puppeted by the Soviet Union in northwestern Iran

1943–1944 occupation during World War II

Former subdivisions in the Soviet Union

short-lived 1914 republic in Europe

self-declared and short-lived communist state

1925-1928 sovereign state in Europe, predecessor of modern Albania

former Italian state (1859–1860)

Rebel state in North Macedonia, 1903

short-lived state

1918 German client state in the Baltics

provisional government in Azerbaijan

former country

state during the Russian Civil War

break-away government from the Centralist Republic of Mexico

The Republic of Stellaland () was, from 1882 to 1883, a Boer republic located in an area of British Bechuanaland (now in South Africa's North West Province), west of the Transvaal. After unification with the neighbouring State of Goshen, it became the United States of Stellaland () from 1883 to 1885.

unrecognized secessionist state in West Africa that existed for one day in 1967, established on 19 September 1967 during the Nigerian Civil War as a puppet state of Biafra

counterrevolutionary government in Russia formed in 1918

1848-1850 provisional state founded by Mormons

independent 1918-1919 republic

former self-proclaimed autonomous republic of Azerbaijan

Anabaptist rebellion

short-lived former country of liberated territory in World War II Europe

historic country

former sovereign state in Africa

former commune State in Europe

short-lived republic in Central Europe between late-May and early-June 1919

Soviet republic

short-lived Turkish state in the Caucasus

1991–1992 self-proclaimed Serb oblast in eastern Croatia

former division of the Russian SFSR

former country

Italian revolutionary state based in Venice

1919 unrecognised state in western Ukraine

kingdom on the island of Corsica (1736)

1899-1903 separatist republic in South America

short-lived state

1917–1918 republic of the Russian SFSR

former country

Napoleonic era monarchy

Short lived republic in 19th century Brazil

1956-1957 monarchy in Northern Africa

1994 breakaway state in South Yemen

1921 unrecognized republic in Europe

short-lived state in Western Thrace

short-lived monarchy in Northern Europe (1814)

former country

government that controlled North Korea between 1947–1948; replaced in 1948 by the Democratic People’s Republic of Korea

French revolutionary municipality in Piedmont, 1798

former country

government of South Korea from 1960 to 1961