The Vietnam War took place.
The Paris Peace Accords , officially titled the Agreement on Ending the War and Restoring Peace in Vietnam , was a peace treaty signed on January 27 , 1973 to establish peace in Vietnam and end the Vietnam War . The role of the United States in the Vietnam War began after World War II and escalated into full commitment during the Vietnam War from 1955 to 1975 . The Vietnam War ( Chiến tranh Việt Nam ) , also known as the Second Indochina War , and known in Vietnam as Resistance War Against America ( Kháng chiến chống Mỹ ) or simply the American War , was a war that occurred in Vietnam , Laos , and Cambodia from 1 November 1955 to the fall of Saigon on 30 April 1975 .