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Yalta Agreement
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Truman Doctrine
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Marshal Plan
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Berlin Airlift
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NATO Formed
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Korean War Begins
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Korean War Ends
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Soviet Union Tests First Hydrogen Bomb
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U.S. First Hydrogen Bomb Test
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McCarthy Hearings
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Warsaw Pact Organized
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Launch of Sputnik
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Bay of Pigs
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Berlin Wall Built
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Cuban Missile Crisis
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Installation of a Hot Line
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(SALT) begins
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Invasion of Afghanistan
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Intermediate Range Nuclear Forces Treaty
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Berlin Wall comes down
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Unification of East and West Germany
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Collapse of the Soviet Union