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: -However, the domino theory proved to be just a theory. Communism didn’t spread around the world or through the region, and the U.S. didn’t win the war. South Vietnam fell to the North Vietnamese forces. In fact, the U.S. involvement in the region led to further destabilization.

Detailed explanation-3: -According to the “domino theory, ‘’ the United States believed that if Vietnam fell to communism, the rest of Southeast Asia would follow. The United States supported the democratic government of South Vietnam, while the Soviet Union supported the communist government of North Vietnam.

Detailed explanation-4: -According to the domino effect theory, a communist country can quickly spread communism to its neighboring countries. The United States condemned communism. Consequently, the United States used the domino effect theory to justify its involvement in the Vietnam War in 1955.

Detailed explanation-5: -For example, the domino theory was used to justify American involvement in both the Korean War and Vietnam War from the 1950’s to the 1970’s.