Soviet Union - Countries, Cold War & Collapse | HISTORY
https://www.history.com/topics/european-history/history-of-the-soviet-union
WEBSep 1, 2017 · The Soviet Union, or U.S.S.R., was made up of 15 countries in Eastern Europe and Asia and lasted from 1922 until its fall in 1991. The Soviet Union was the world’s first Marxist …
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