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  1. Soviet Union - Wikipedia

    The Union of Soviet Socialist Republics[u] (USSR), [v] commonly known as the Soviet Union, [w] was a transcontinental country that spanned much of Eurasia from 1922 until its dissolution in …

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

    Dec 19, 2025 · 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. 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).

  5. Soviet Union - New World Encyclopedia

    Efforts to develop a capitalist economy while creating a new socialist government system failed. What resulted was a command economic system with an increasingly totalitarian political …

  6. 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. As a nuclear state, it wielded the …

  7. Back in The U.S.S.R. © Paul McCartney - YouTube

    Paul McCartney Live in Concert LUBBOCK Texas. Performing: Back in the USSR

  8. Republics of the Soviet Union - Wikipedia

    Chapter 8 of the 1977 Soviet Constitution is titled as the "Soviet Union is a union state". Article 70 stated that the union was founded on the principles of "socialist federalism" as a result of the …

  9. Soviet Union - Communism, Revolution, USSR | Britannica

    Dec 14, 2025 · To organize and finance this effort, they formed in March 1919 the Third International, or “Comintern.” This organization was a branch of the Russian Communist Party …

  10. 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 …