The Soviet Union (Russian: Сове́тский Сою́з, tr. Sovetsky Soyuz; IPA: [sɐˈvʲɛt͡skʲɪj sɐˈjus]), officially the Union of Soviet Socialist Republics (USSR; Russian: Сою́з Сове́тских Социалисти́ческих Респу́блик (СССР), tr. Soyuz Sovetskikh Sotsialisticheskikh Respublik (SSSR); IPA: [sɐˈjus sɐˈvʲɛtskʲɪx sətsɨəlʲɪsˈtʲitɕɪskʲɪx rʲɪˈspublʲɪk], also known unofficially as Russia (Russian: Росси́я, tr. Rossiya; IPA: [rɐˈsʲijə]), was a socialist state in Eurasia that existed from 1922 to 1991. Nominally a union of multiple equal national Soviet republics, its government and economy were highly centralized. The country was a one-party federation, governed by the Communist Party with Moscow as its capital.
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