The Truman Doctrine

The Truman Doctrine, established in 1947 by U.S. President Harry Truman, was a policy aimed at containing the spread of communism during the Cold War. It was a response to the threat posed by the Soviet Union and involved providing political, military, and economic assistance to countries resisting communist influence. The doctrine marked a significant shift in American foreign policy, committing the U.S. to support free nations facing external pressure and subversion, which framed the foundation for U.S. involvement in global conflicts related to communism, most notably in Greece and Turkey at the time.