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South Vietnamese President Ngo Dinh Diem is executed during a coup.
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North Vietnamese attack two U.S. destroyers supposedly that where in unauthorized waters.
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U.S. aerial bombing campaign of North Vietnam begins it was called rolling thunder.
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The North Vietnamese fight with the Viet Cong to launch the Tet Offensive, attacking one hundred South Vietnamese cities and towns.
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U.S. soldiers kill hundreds of Vietnamese civilians in the town of Mai Lai.
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The last U.S. troops come back from Vietnam.
