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South Vietnam declares itself the Republic of Vietnam, with newly elected Ngo Dinh Diem as president.
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The NLF, also called the Viet Cong, is established in South Vietnam.
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South Vietnamese President Ngo Dinh Diem is executed during a coup.
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Elected as the 36th President of the United States of America.
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North Vietnam supposedly attacks the USS Maddox sitting in international waters.
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In response to the Gulf of Tonkin Incident, the U.S. Congress passes the Gulf of Tonkin Resolution.
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The first U.S. combat troops arrive in Vietnam.
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The North Vietnamese join forces with the Viet Cong to launch the Tet Offensive, attacking approximately one hundred South Vietnamese cities and towns.
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Elected as the 37th President of the United States of America.
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U.S. troops in Vietnam reaches 540,000.
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President Nixon orders the first of many U.S. troop withdrawals from Vietnam.
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President Nixon announces that U.S. troops will attack enemy locations in Cambodia. This news sparks nationwide protests.
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The Paris Peace Accords are signed that provide a cease-fire.
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The last U.S. troops are withdrawn from Vietnam.
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South Vietnam surrenders to the communists.