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Yalta Conference meeting of FDR, Churchill, Stalin - the 'Big Three' Soviet Union has control of Eastern Europe. The Cold War Begins
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The United States, Britain, and the Soviet Union meet at Yalta. The United Nations is founded.
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The Truman Doctrine promises support to nations resisiting Communist aggression
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The Marshall Plan provides U.S. aid to Europe. The Berlin airlift brings supplies to West Berlin
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The Soviet Union blocked the Western Allies' railway, road, and canal access to the sectors of Berlin under allied control.
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British and American military aircraft made more than 200,000 flights to deliver food, fuel, and other supplies to West Berlin by plane
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NATO is formed to defend Europe against te Communists
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Truman approved Hydrogen bomb development
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The Soviets test the first Hydrogen bomb
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The Warsaw Pact is formed
