Answer:
Truman Doctrine
Step-by-step explanation:
Under the Truman Doctrine, the United States helped Greece and Turkey fight a communist takeover. The Truman Doctrine, announced by President Harry S. Truman in 1947, outlined the U.S. policy of providing economic and military assistance to nations threatened by communist expansion. In the case of Greece and Turkey, the United States extended support to prevent the spread of communism and Soviet influence in the region. This marked a significant shift in U.S. foreign policy toward containment during the early years of the Cold War.