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The cold war
The Cold War (1947–1991) was a state of geopolitical tension between the two primary World War II victors, the Soviet Union and its satellite states (the communist Eastern Bloc), and the United States, its allies and others (the capitalist Western Bloc). A common historiography of the conflict begins with 1946, the year U.S. diplomat George F. Kennan's "Long Telegram" from Moscow cemented a U.S. foreign policy of containment of Soviet expansionism threatening strategically vital regions.