After World War II, the focus of U.S. foreign policy shifted from isolationism to an internationalist approach known as containment to prevent the spread of communism.
The focus of U.S. foreign policy changed after World War II from isolationism to an internationalist approach known as containment. During the Cold War, the U.S. aimed to contain the spread of communism, particularly by the Soviet Union and its allies, to prevent them from influencing other states. This shift led to active involvement in conflicts globally, such as the ones in Korea, Vietnam, and other regions, to protect American security.
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