Succession, continuity and legacy of the USSR
The Soviet Union, officially the Union of Soviet Socialist Republics (USSR), was a transcontinental country that spanned much of Eurasia from 1922 to 1991. It was a founding member of the United Nations in 1945, as well as a permanent member of the United Nations Security Council. Following the dissolution of the USSR in 1991, its seat at the United Nations was transferred to the Russian Federation, which is its continuator state.