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American troops help defend South Korea
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U.S. sponsored invasion of Cuba fails.
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U.S. forces Soviet Union to remove nuclear missiles from Cuba.
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U.S. build-up of troops in Vietnam.
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President Richard Nixon visits China and Soviet Union. Nixon and Brezhnev sign first Strategic Arms Limitation Treaty (SALT).
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Paris Peace Accords are signed, ending U.S. involvement in Vietnam War. OPEC places an embargo on oil to U.S. because of the nation's support for Israel in October War.
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U.S. signs treaty agreeing to return Canal Zone and control of canal to Panama by 1999