The Domino Theory: The falling of one country to communism would result in other surrounding communist countries also falling, much as one toppled domino will take down others in a row
The Gulf of Tonkin Resolution authorized President Lyndon Johnson to do anything necessary to win any attack against the US by the communist government of North Vietnam
Ho Chi Minh Trail A network of roads built from North Vietnam to South Vietnam through Laos and Cambodia, to provide support to the Vietnamese Army made of a combination of truck routes and paths for foot and bicycle traffic.
Hawks vs. Doves Doves believed the Vietnam war was a civil war and did not think the US should be involved. Hawks supported Johnson's policy and believed Vietnam was a crucial front in the Cold War.
Vietnamization
US policy of withdrawing its troops and transferring the responsibility and direction of the war effort to the government of South Vietnam.
Kent State Shootings May 4, 1970, shooting of unarmed college students by the Ohio National Guard at Kent State University in Kent, Ohio, during a peace rally
Legacy of the War 58,220 US troops were killed, and North Vietnam remained communist and took over South Vietnam, with the people still having effects from Agent Orange.
Agent Orange A powerful herbicide used by U.S. military forces during the Vietnam War to eliminate forest cover and crops for North Vietnamese and Viet Cong troops.
The Draft On December 1, 1969 the Selective Service System of the United States conducted two lotteries to determine the order of call to military service in the Vietnam War for men born from January 1, 1944 to December 31, 1950.