Answer:
The Truman Doctrine was an American foreign policy created to contain Soviet geopolitical spread during the Cold War, first announced to Congress by President Harry S. Truman on March 12, 1947.
Step-by-step explanation:
The Truman Doctrine was an American foreign policy created to counter Soviet geopolitical spread during the Cold War. It was first announced to Congress by President Harry S. Truman on March 12, 1947, and further developed on July 12, 1948, when he pledged to contain Soviet threats to Greece and Turkey. American military force was usually not involved, but Congress appropriated free gifts of financial aid to support the economies and the military of Greece and Turkey. More generally, the Truman Doctrine implied American support for other nations threatened by Soviet communism.