Europe:
The Marshall Plan: This was a massive economic recovery program that the United States implemented in Western Europe after World War II. The goal was to rebuild the war-torn economies of Western Europe and to prevent them from falling under communist control.
The Truman Doctrine: This was a policy that the United States adopted in 1947 to provide military and financial aid to countries that were threatened by communism. The Truman Doctrine was applied in Greece and Turkey, where the United States helped to prevent communist takeovers.
The Berlin Airlift: This was a massive humanitarian effort that the United States and its allies undertook in 1948-49 to supply food and other essential goods to West Berlin, which was blockaded by the Soviet Union. The Berlin Airlift was a success, and it helped to prevent the city from falling under communist control.
The North Atlantic Treaty Organization (NATO): This was a military alliance that was formed by the United States, Canada, and Western European countries in 1949. The goal of NATO was to deter Soviet aggression and to prevent the spread of communism in Western Europe.
Asia:
The Korean War: This was a conflict that took place between North Korea and South Korea from 1950 to 1953. The United States and its allies intervened on behalf of South Korea, and they were able to prevent North Korea from taking over the entire country.
The Vietnam War: This was a conflict that took place between North Vietnam and South Vietnam from 1954 to 1975. The United States and its allies intervened on behalf of South Vietnam, but they were ultimately unsuccessful in preventing North Vietnam from taking over the entire country.
The Cold War in Southeast Asia: The United States also used containment to combat the spread of communism in Southeast Asia. This involved providing military and financial aid to countries in the region, such as Thailand and South Vietnam, as well as intervening militarily in conflicts such as the Korean War and the Vietnam War.
Latin America:
The Cuban Missile Crisis: This was a tense standoff between the United States and the Soviet Union in 1962, which was caused by the Soviet Union's decision to place nuclear missiles in Cuba. The crisis was resolved when the Soviet Union agreed to remove the missiles from Cuba, in exchange for the United States agreeing not to invade Cuba.
The Alliance for Progress: This was a program that the United States launched in 1961 to promote economic and social development in Latin America. The goal of the Alliance for Progress was to improve living standards in the region and to prevent the spread of communism.