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  1. Soviet Union - Wikipedia

    The USSR was one of the most advanced industrial states during its existence. It had the world's second-largest economy and largest standing military. An NPT-designated state, it wielded the …

  2. Soviet Union | History, Leaders, Flag, Map, & Anthem | Britannica

    2 days ago · At its greatest extent, between 1946 and 1991 (the figures and descriptions given below refer to this period), the U.S.S.R. covered some 8,650,000 square miles (22,400,000 …

  3. What Was the USSR and Which Countries Were in It? - ThoughtCo

    May 6, 2025 · The USSR was a large communist country made up of Russia and 14 other countries. The USSR was founded in 1922 and dissolved in 1991 after Gorbachev's reforms …

  4. Former Soviet Union (USSR) Countries - WorldAtlas

    Feb 14, 2023 · Former Soviet Union (USSR) Countries The Soviet Union (or the Union of Soviet Socialist Republics - USSR) was a giant single-party communist state formed by the federal …

  5. Soviet Union - Countries, Cold War & Collapse | HISTORY

    Sep 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 ...

  6. The Soviet Socialist Republics | World History - Lumen Learning

    The Soviet Union, officially the Union of Soviet Socialist Republics (USSR), was a federation of Soviet Republics that were outwardly independent nations, but existed essentially as satellite …

  7. History of the Soviet Union - Wikipedia

    The history of the Soviet Union (USSR) (1922–1991) began with the ideals of the Russian Bolshevik Revolution and ended in dissolution amidst economic collapse and political …

  8. Soviet Union Timeline - Have Fun With History

    Feb 8, 2024 · The Union of Soviet Socialist Republics (USSR) was established on December 30, 1922. It was formed through the Treaty on the Creation of the USSR, which unified several …

  9. Soviet Union - Wikiwand

    The USSR was one of the most advanced industrial states during its existence. It had the world's second-largest economy and largest standing military. An NPT-designated state, it wielded the …

  10. Why Did the Soviet Union Collapse? | Britannica

    Political policies, economics, defense spending, and the Chernobyl nuclear disaster, among other factors, contributed to the collapse of the Soviet Union in 1991.