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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

    4 days ago · During the period of its existence, the Union of Soviet Socialist Republics was by area the world’s largest country. It was also one of the most diverse, with more than 100 …

  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 · The Soviet Union (or the Union of Soviet Socialist Republics - USSR) was a giant single-party communist state formed by the federal union of 15 national republics. It existed …

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

    Sep 1, 2017 · A 1922 treaty between Russia, Ukraine, Belarus and Transcaucasia (modern Georgia, Armenia and Azerbaijan) formed the Union of Soviet Socialist Republics (USSR).

  6. The Former Soviet Union: Countries - Map Quiz Game - Seterra

    Before it broke up in 1991, the USSR was by far the largest country in the world. While Russia is still the biggest, the 14 other republics are relatively small by comparison. This teaching tool is …

  7. What was the USSR? - History Skills

    The USSR, or the Union of Soviet Socialist Republics, was a historical state that existed from 1922 to 1991 in northern Eurasia. It was the first country to be based on the ideology of …

  8. History of the Soviet Union - Wikipedia

    Established in 1922 following the Russian Civil War, the Soviet Union quickly became a one-party state under the Communist Party. Its early years under Lenin were marked by the …

  9. USSR: The Union of Soviet Socialist Republics

    Sep 11, 2024 · The Union of Soviet Socialist Republics (USSR), commonly known as the Soviet Union, was a socialist state in Eurasia that existed from 1922 to 1991. It was a single-party …

  10. 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 …