Which American President is associated with the Doctrine of 'Containment of Communism'?

Harry Truman

The correct answer is Option 2 - Harry Truman

1947; American President Harry Truman’s Doctrine about the containment of communism

The Truman Doctrine led to the establishment of NATO (North Atlantic Treaty Organization). NATO was founded in 1949 as a collective defense alliance among Western European and North American countries to counter the threat of Soviet expansionism
The Truman Doctrine was a significant Cold War foreign policy initiative introduced by U.S. President Harry S. Truman in 1947. It aimed to contain the spread of communism, particularly in Europe. Truman argued that the United States should provide economic and military assistance to countries threatened by communism.