<P> The Soviet Union , officially the Union of Soviet Socialist Republics ( USSR , Russian : СССР ) , was a socialist state in Eurasia that existed from 1922 to 1991 . Nominally a union of multiple equal national Soviet republics , its government and economy were highly centralized . The country was a one - party state , governed by the Communist Party with Moscow as its capital in its largest republic , the Russian Soviet Federative Socialist Republic . The Russian nation had constitutionally equal status among the many nations of the union but exerted de facto dominance in various respects . Other major urban centres were Leningrad , Kiev , Minsk , Alma - Ata and Novosibirsk . The Soviet Union was one of the five recognized nuclear weapons states and possessed the largest stockpile of weapons of mass destruction . It was a founding permanent member of the United Nations Security Council , as well as a member of the Organization for Security and Co-operation in Europe ( OSCE ) and the leading member of the Council for Mutual Economic Assistance ( CMEA ) and the Warsaw Pact . </P>
<P> The Soviet Union , officially the Union of Soviet Socialist Republics ( USSR , Russian : СССР ) , was a socialist state in Eurasia that existed from 1922 to 1991 . Nominally a union of multiple equal national Soviet republics , its government and economy were highly centralized . The country was a one - party state , governed by the Communist Party with Moscow as its capital in its largest republic , the Russian Soviet Federative Socialist Republic . The Russian nation had constitutionally equal status among the many nations of the union but exerted de facto dominance in various respects . Other major urban centres were Leningrad , Kiev , Minsk , Alma - Ata and Novosibirsk . The Soviet Union was one of the five recognized nuclear weapons states and possessed the largest stockpile of weapons of mass destruction . It was a founding permanent member of the United Nations Security Council , as well as a member of the Organization for Security and Co-operation in Europe ( OSCE ) and the leading member of the Council for Mutual Economic Assistance ( CMEA ) and the Warsaw Pact . </P>
what did cccp stand for in the soviet union
what did cccp stand for in the soviet union
the Union of Soviet Socialist Republics ( USSR , Russian : СССР )
the Union of Soviet Socialist Republics ( USSR , Russian : СССР )