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  1. Soviet Union - Wikipedia

    In 1985, the last Soviet leader, Mikhail Gorbachev, sought to reform the country through his policies of glasnost and perestroika. In 1989, various countries of the Warsaw Pact overthrew their Soviet …

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

    Dec 19, 2025 · Soviet Union (Union of Soviet Socialist Republics; U.S.S.R.), former northern Eurasian empire (1917/22–1991) stretching from the Baltic and Black seas to the Pacific Ocean and, in its final …

  3. What Countries Were Part of the Soviet Union? - HISTORY

    Mar 8, 2022 · Founded in 1922 as a confederation of Russia, Belarus, Ukraine and Transcaucasia (comprised of Georgia, Azerbaijan and Armenia), the Union of Soviet Socialist Republics (USSR) …

  4. The complete list of Soviet republics - Russia Beyond

    In 1991 the Soviet Union collapsed and its 15 republics became independent countries. Here’s the list of the Soviet Socialist Republics in the order they are named in the Soviet...

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

    May 6, 2025 · The USSR consisted of Russia and 14 surrounding countries, and its territory stretched from the Baltic states in Eastern Europe to the Pacific Ocean.

  6. Soviet Union Countries 2025 - World Population Review

    List of countries that were part of the Soviet Union, including a brief overview of the early history of the Soviet Union and many more details about this former geopolitical entity.

  7. Former Soviet Union (USSR) Countries - WorldAtlas

    Feb 14, 2023 · In this article, we'll take a closer look at the 15 post-Soviet countries and see how they've been faring on their journey to the present day.

  8. Republics of the Soviet Union - Wikipedia

    In the Soviet Union, a Union Republic (Russian: Сою́зная Респу́блика, romanized: Soyúznaya Respúblika) or unofficially a Republic of the USSR was a constituent federated political entity with a …

  9. Countries of USSR List: Historical Soviet States

    Dec 29, 2024 · After the Soviet Union fell apart in 1991, fifteen new countries sprang up from the old Union Republics, each going its own way. They’ve built their own laws and rules and joined different …