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China had become communist in 1949 and communists were in control of North Vietnam. The USA was afraid that communism would spread to South Vietnam and then the rest of Asia. It decided to send money, supplies and military advisers to help the South Vietnamese Government. -
President Dwight D. Eisenhower coins one of the most famous Cold War phrases when he suggests the fall of French Indochina to the communists could create a “domino” effect in Southeast Asia. The so-called “domino theory” dominated U.S. thinking about Vietnam for the next decade. -
In July 1954, the Geneva Agreements were signed. As part of the agreement, the French agreed to withdraw their troops from northern Vietnam. Vietnam would be temporarily divided at the 17th parallel, pending elections within two years to choose a president and reunite the country. -
On 1 November 1963, Ngô Đình Diệm, the president of South Vietnam, was arrested and assassinated in a successful coup d'état led by General Dương Văn Minh. The coup was the culmination of nine years of autocratic and nepotistic family rule in the country. -
The Gulf of Tonkin Resolution authorized President Lyndon Johnson to “take all necessary measures to repel any armed attack against the forces of the United States and to prevent further aggression” by the communist government of North Vietnam. -
The Tet Offensive consisted of simultaneous attacks by some 85,000 troops under the direction of the North Vietnamese government. The attacks were carried out against five major South Vietnamese cities, dozens of military installations, and scores of towns and villages throughout South Vietnam. -
The My Lai massacre was one of the most horrific incidents of violence committed against unarmed civilians during the Vietnam War. A company of American soldiers brutally killed most of the people—women, children and old men—in the village of My Lai on March 16, 1968 -
Vietnamization was a policy of the Richard Nixon administration to end U.S. involvement in the Vietnam War through a program to "expand, equip, and train South Vietnamese forces and assign to them an ever-increasing combat role, at the same time steadily reducing the number of U.S. combat troops". -
Enhancing the destruction, in April 1970, President Nixon ordered United States troops to occupy parts of Cambodia. Nixon claimed that the soldiers were protecting the United States' withdrawal from South Vietnam. -
The Kent State shootings, also known as the May 4 massacre and the Kent State massacre, were the killings of four and wounding of nine other unarmed Kent State University students by the Ohio National Guard on May 4, 1970 in Kent, Ohio, 40 mi south of Cleveland. -
The Hard Hat Riot occurred on May 8, 1970, in New York City. It started around noon when around 400 construction workers and around 800 office workers attacked around 1,000 demonstrators affiliated with the student strike of 1970 -
American B-52s and fighter-bombers dropped more than 20,000 tons of bombs on the cities of Hanoi and Haiphong. During the attacks, the U.S. Air Force lost 15 of the 129 B-52 bombers engaged in the air raids, plus 11 other aircraft. North Vietnam claimed that more than 1,600 civilians were killed -
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 War Powers Resolution of 1973 (also known as the War Powers Act) "is a congressional resolution designed to limit the U.S. president's ability to initiate or escalate military actions abroad. -
The Fall of Saigon, also known as the Liberation of Saigon by North Vietnamese or Liberation of the South by the Vietnamese government, was the capture of Saigon, the capital of South Vietnam, by the People's Army of Vietnam and the National Liberation Front of South Vietnam on 30 April 1975.