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Ho Chi Minh’s Viet Minh forces defeat the French at the Battle of Dien Bien Phu, effectively ending the 7 ½-year Indochina War.
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At a conference in Geneva, world powers agree to a divided Vietnam.
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Southern revolutionaries, backed by the North Vietnamese Communist Party, form the National Liberation Front, known in Saigon and Washington as the Viet Cong.
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President Diem and his brother Ngo Dinh Nhu are murdered during a coup by dissident generals of the South Vietnamese army.
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Two supposed incidents in the Gulf of Tonkin lead Johnson to seek congressional approval for direct U.S. involvement in Vietnam.
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During a series of “border battles” in the remote locations of Dak To, Con Thien and Khe Sanh, U.S. Army and Marines face relentless onslaughts from North Vietnamese.
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During the Tet Offensive, North Vietnamese and Viet Cong troops launch surprise attacks against targets throughout South Vietnam.
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Over the course of four hours, American soldiers kill more than 500 unarmed civilians in and around the hamlet of My Lai.
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Last U.S. combat troops leave South Vietnam.
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Saigon Falls