What political and economic policies did the United States employ in response to the perceived threat of Soviet Communism during the Cold War?

The Truman Doctrine was the 1947 American policy of providing economic and military aid to Greece and Turkey because they were threatened by communism. The Truman Doctrine was informally extended to become the basis of the Cold War policy of containment.

Explanation:

a countries leader should be motivated by the common good of the country.