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cold war begins
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when the united states first used an atomic bomb in the war
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the iron curtain speech
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truman declares active role in greek civil war
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marshall plan was announced
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berlin blockade ends
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soviets explode first atomic bomb
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korean war begins
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Warsaw pact formed
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Khrushchev visits united states, denied access to disneyland
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JFK elected president
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JFK was assasinated
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president nixon extends vietnam war to Cambodia
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president nixon resigns
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north vietnam defeats south vietnam
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shah of iran overthrown, iranian hostage crisis
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President reagan proposed strategic defense initiation
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soviet troops with draw from afganistan
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germany reunited
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cold war ends