WORLD HISTORY

Detailed explanation-1: -The US justified its military intervention in Vietnam by the domino theory, which stated that if one country fell under the influence of Communism, the surrounding countries would inevitably follow. The aim was to prevent Communist domination of South-East Asia.

Detailed explanation-2: -The domino theory was one of the main arguments used in the Kennedy and Johnson administrations during the 1960s to justify increasing American military involvement in the Vietnam War.

Detailed explanation-3: -The domino theory was a Cold War policy that suggested a communist government in one nation would quickly lead to communist takeovers in neighboring states, each falling like a row of dominos.

Detailed explanation-4: -The domino theory was the basis for the United States strategy of containment, and the reason for entering the Vietnam War. The Vietnam War was a result of the national strategy of containment. The national strategy of containment demanded the U.S. stop communist aggression into the countries of Southeast Asia.

Detailed explanation-5: -During the Cold War, the U.S. Government feared that communism would spread and threaten democracy around the world. In Vietnam, the United States committed to battling communism financially at first, by supporting South Vietnam – who fought for Vietnam to be aligned with western allies like the United States.