What was the goal of President Truman's policy of containment?

To prevent communism from spreading. Containment was a United States strategy utilizing various methodologies to keep the spread of socialism abroad. A part of the Cold War, this approach was a reaction to a progression of moves by the Soviet Union to amplify its comrade range of authority in Eastern Europe, China, Korea, and Vietnam.

Containment is a strategy to prevent expansion of enemy. The Truman Doctrine effectively reoriented U. S. foreign policy, away from its usual stance of withdrawal from regional conflicts not directly involving the United States, to one of possible intervention in far away conflicts. Truman Doctrine was established in 1947. Main goal of Containment policy was to prevent communism from spreading