UNION OF SOVIET
SOCIALIST REPUBLICS
Union of Soviet Socialist Republic (1922 - 1991)
had 16 soviet socialist republics :
Armenian Soviet Socialist Republic (1936 - 1991)
Azerbaijan Soviet Socialist Republic (1936 - 1991)
Belorussian Soviet Socialist Republic (1920 - 1991)
Estonian Soviet Socialist Republic (1940 - 1991)
Georgian Soviet Socialist Republic (1936 - 1991)
Karelo-Finnish Soviet Socialist Republic (1940 - 1956)
Kazakh Soviet Socialist Republic (1936 -1991)
Kirghiz Soviet Socialist Republic (1936 - 1991)
Latvian Soviet Socialist Republic (1940 -1991)
Lithuanian Soviet Socialist Republic (1940 - 1991)
Moldavian Soviet Socialist Republic (1940 - 1991)
Russian Soviet Federative Socialist Republic (1917 - 1991)
Tajik Soviet Socialist Republic (1929 - 1991)
Turkmen Soviet Socialist Republic (1924 - 1991)
Ukrainian Soviet Socialist Republic (1922 - 1991)
Uzbek Soviet Socialist Republic (1925 -1991)