Cold War rivalry - EduqasUS involvement in Vietnam

A Cold War rivalry developed between the USA and the Soviet Union after World War Two. This threatened the world with nuclear war, causing tensions in both Germany and Cuba.

Part ofHistoryThe USA, 1929-2000

US involvement in Vietnam

Learn more about the Vietnam War in this podcast.

By the 1950s, the USA was becoming increasingly concerned about the spread of in Asia. China had become a communist country in 1949 and South Korea was only prevented from becoming a communist country when the USA and its allies intervened in the Korean War in the early 1950s. To prevent the predictions of becoming a reality in Asia, the government of the USA felt that it was necessary to intervene in Vietnam to stop communism from spreading.

There were various causes of the Vietnam War itself, originating from problems that had built up over a number of years.

A photograph of Ngo Dinh Diem and President Eisenhower shaking hands
Image caption,
Ngo Dinh Diem, leader of South Vietnam, meets President Dwight D Eisenhower in Washington, DC - 8 May 1957

The division of Vietnam

Vietnam had been part of the French Empire until the Vietnamese communist won their war for independence in 1954. In July 1954, the Geneva Agreement resulted in Vietnam being temporarily divided in two - the communist Ho Chi Minh would lead North Vietnam and the non-communist Ngo Dinh Diem would lead South Vietnam.

The USA did not want there to be elections in the South or reunification between the two parts of Vietnam. This was because they knew that in either case, the communists would take power. To contain communism in Asia and stop communism from spreading to other countries, the US government believed Vietnam would have to stay divided.

The Viet Cong

The Viet Minh now became the fighting for the reunification of North and South Vietnam. They began a campaign in 1959 against the government of South Vietnam and tried to raise support among the people for the communist government in the North.

The USA supported the government in the South firstly with money and then with weapons. Later, they sent advisers to help South Vietnam defend itself against Viet Cong attacks. Some of the South Vietnamese people were moved out of their homes into fortified villages known as to prevent communist influence.

The Diem regime in South Vietnam

The problem for the USA was that the Diem’s government in South Vietnam was very unpopular. Vietnamese peasants worked very hard to pay rent to their wealthy landlords and realised that their government had no interest in improving their lives. The Viet Cong promised that communism would get rid of the landlords and land would be shared out among the people fairly.

Diem was a French-speaking ruler who had no interest in the problems faced by the majority of the population of South Vietnam, who were poor Vietnamese-speaking Buddhists. In November 1963, Diem was From that point, there was no stable government in South Vietnam, just at the time when Viet Cong attacks were intensifying.

Gulf of Tonkin incident

  • In August 1964 the USS Maddox, an American warship, was fired at by North Vietnamese boats as it patrolled the Vietnamese coast in the Gulf of Tonkin.
  • immediately passed the Tonkin Resolution, giving President Lyndon B Johnson the power to increase the American military intervention in South Vietnam.
  • The goal was to prevent South Vietnam, and neighbouring Laos and Cambodia, from becoming communist.
  • Large numbers of US troops, ships and planes were sent to support the government of South Vietnam.