Former client states

republic of the Soviet Union (1940-1991)

republic of the Soviet Union (1940–1991)

republic of the Soviet Union (1940-1991)

Oghuz Turk dynasty 1127-1250, founded by Imad ad-Din Zengi

Crusader principality in southern Greece

puppet state proposed in 1916 by Germany and Austria-Hungary

historical unrecognized state

13th Century short-lived Crusader state founded after the Fourth Crusade, 1204-1224

thumb|right|Urho Kekkonen and [[Leonid Brezhnev in 1960 during Kekkonen's state visit to the Soviet Union.]]

Foederati ( ; singular: foederatus ) were peoples and cities bound by a treaty, known as foedus, with Rome. During the Roman Republic, the term identified the socii, but during the Roman Empire, it was used to describe foreign states, client kingdoms or barbarian tribes to which the empire provided benefits in exchange for military assistance. The term was also used, especially under the empire, for groups of barbarian mercenaries of various sizes who were typically allowed to settle within the empire.

anti-socialist government in Ukraine (except West Ukraine), 1918

former country

former country, recognized only by Poland (1920-1922)

former country

proposed country in 1918

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

nominal state in what is now Estonia and Latvia

1918 German client state in the Baltics

former country

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

former country

short-lived state in Western Thrace

historical states prior to unification by Qin Dynasty in 221 BCE

regimes in Crimean Peninsula, 1918 and 1919

1975–1983 state on the region of Northern Cyprus

former unrecognized state in Southern Lebanon

autonomous Turkish administration in North Cyprus

1916-1920 republic in Europe

allied-occupied Italy in WW2

Chinese dynasty (555-587)

established by Yelü Bei (926－930)

vassal state of the Crown of Castile

puppet state of the Jin dynasty

condominium of the Old Swiss Confederacy

Vassal kingdom of Pagaruyung

kind of administrative division of imperial China

historical region

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