During the Cold War, the United States engaged in many aggressive policies both in America and abroad in an effort to combat communism and the spread of communist ideologies. Faced with a new challenge and global responsibilities, the United States needed to preserve what it had fought for in World War II. It was supposed to contain communist ideas from the Soviet Union while preventing communist influence in America, without causing World War III. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an Original EssayThe United States successfully used containment through the application of 3 methods, the Berlin Airlift, the Truman Doctrine, and the use of naval blockade. The Berlin Airlift was an effective containment method by which the disbanded states responded to the Soviet blockade of Berlin, successfully bringing food and medical supplies to areas controlled by Berlin's allies. In June 1948, the Soviets blocked all external access to Berlin from the west. This retaliatory move was intended to send a signal to the United States and its allies that the Soviet Union did not tolerate Western interference in its territories. In response, President Truman made a decision that would allow the United States to provide supplies to the people of Berlin without fighting the Soviets. His proposal called for American planes to airlift supplies to West Berlin. This plan was immediately accepted, and the Berlin Airlift began transporting thousands of food and supplies to Berlin daily. In May 1949, the Soviets lifted the blockade and allowed the free flow of supplies into West Berlin. This caused the defeat of the Soviet Union in what was essentially a public relations war. This controversy demonstrates that the Berlin Airlift was an effective containment method. The Truman Doctrine was another effective method of containment in which President Truman declared that the United States should provide military support to countries threatened by Soviet forces or communist insurgency. In August 1945 the Soviet Union invaded Korea, which had been under the control of Japan since 1910. that the Soviet Union would conquer the entire peninsula, the United States quickly moved its soldiers into South Korea. The forces Japanese armies surrendered to the Soviets in the north and to the Americans in the south. In an effort to avoid a long-term dispute over Korea's future, the United States and the Soviet Union agreed to divide Korea along the 38th parallel. In 1950, the Korean Peninsula was divided between an American government in the south and a Soviet government in the north. When North Korean soldiers invaded South Korea, the Truman administration used the opportunity to defend a non-Communist government from invading Communist forces. Determined not to allow another country to be defeated by communism and interested in upholding its anti-communist credentials, the Truman administration decided to provide military support to South Korea. The war continued for several years and finally ended in 1953, very close to original borders. The Truman Doctrine was a successful method of containment in which, because the Truman administration decided to defend South Korea and its democratic ways, it effectively contained another nation from the communist ideologies of the Soviet Union. The application of the naval blockade implemented by the United States was another effective method of containment. In January 1959 Cuba became a communist country under the reign of Fidel Castro. Starting in May 1962 the Soviet Union began.