South Korea--China and USA went to prevent the Domino Theory--- if one country becomes communist, all the countries around it will too.
Containment
The government policy of containment of communism. It was felt that if a country became communist that the nearby countries would follow. This was called "domino effect" and ruled American foreign policy for 60 years. To some extent it still does,but the players have changed .
containment
What was the name of the US Foreign policy that was designed to limit the influence of the Soviets & communism on the world?
Restrict the spread of communism in foreign countries
It was a policy of containment to stop communism.
Korea was the FIRST "Hot" battle of the Cold War. Vietnam was the SECOND "Hot" battle of the Cold War. The Communists lost (or stalemated) with the first battle, but won the second battle. The communists were contained in Korea. They expanded in Vietnam.The policy of containment in Vietnam was a US foreign policy to contain and isolate the spread of communism to neighboring countries. If communism were not contained in North Vietnam, then South Vietnam, Laos, Cambodia, and Thailand would inevitably become communist as well.
Containment
Containment. VN & Korea were containment.
The fact that Vietnam was being taken over by a dictator was one of the foreign policy issues that motivated American intervention in Vietnam. At first, the Americans were just there to teach the people of South Vietnam to defend themselves through the establishment of an army. There was also the Containment Policy, which was the United States' foreign policy to prevent more countries from "acquiring the disease of Communism".
USA
Johnson was actually carrying out what was called the Truman Doctrine (after President Harry Truman) who advocated the containment of communism. Johnson's approach was a gradually increasing military involvement which was known as escalation. His purpose was simply to prevent communist North Vietnam from taking over non-communist South Vietnam. And certainly, he had Congressional support. Congress passed the Gulf of Tonkin Resolution to support him.