Britannica
Sources used in this answer
- Soviet Union
- Soviet Union
- history of Central Asia: Top Questions
- history of Central Asia - Soviet rule
- 25th Anniversary of the End of the Soviet Union
- Russia - New Economic Policy (1921β28)
- Russia - The Indo-European group
- collapse of the Soviet Union
- Kazakhstan: Top Questions
- Communist Party of the Soviet Union
Which countries made up the Soviet Union?
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The Soviet Union, officially the Union of Soviet Socialist Republics (U.S.S.R.), was a federal socialist state in Eurasia that existed from 1922 to 1991. In its final years, it comprised 15 Soviet Socialist Republics (S.S.R.'s): Armenia, Azerbaijan, Belarus, Estonia, Georgia, Kazakhstan, Kyrgyzstan, Latvia, Lithuania, Moldova, Russia, Tajikistan, Turkmenistan, Ukraine, and Uzbekistan.123
The U.S.S.R. was established on December 30, 1922, by the Russian, Ukrainian, Byelorussian, and Transcaucasian Soviet republics. Over the subsequent years, additional republics were formed, bringing the total to 15 by 1940. The Soviet Union officially dissolved on December 31, 1991, leading to the formation of 15 independent countries.13