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October 1962
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May 1960
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March 1965
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April 1966
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August 1968
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February 1972
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April 1975
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December 1979
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The US discovers Soviet missiles in Cuba
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Soviets shoot down an American U-2 spy plane
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US combat troops begin arriving in Vietnam
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Khrushchev replaced as Soviet leader by Brezhnev
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Moscow rolls back the Prague Spring reforms
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Richard Nixon visits China, meets Mao Zedong
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The Khmer Rouge seizes control of Cambodia
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Soviet forces invade neighbouring Afghanistan