Answer:
In 1947, President Harry S. Truman pledged that the United States would help any nation resist communism in order to prevent its spread. His policy of containment is known as the Truman Doctrine.
Truman's response to the Soviet Union's sphere of influence and current conditions of war-torn Europe would become known as the Truman Doctrine. This doctrine proposed to give aid to countries that were suffering from the aftermath of World War II and threatened by Soviet oppression.
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