What was the name of the US policy to contain communism?

What was the name of the US policy to contain communism? The answer is containment. It was the broad United States strategy of limiting the expansion of Soviet influence and communism after World War II.

American diplomat George F. Kennan developed the intellectual basis for containment. His 1946 “Long Telegram” and a 1947 Foreign Affairs article argued that the Soviet system would eventually retreat if its expansion were firmly resisted over the long term.

Containment shaped the Truman Doctrine, which committed the United States to supporting Greece and Turkey in 1947. It also influenced the Marshall Plan, the creation of NATO, and American involvement in conflicts such as the Korean and Vietnam Wars. The policy did not always mean direct war; it also involved economic aid, alliances, diplomacy, and political pressure.

Containment is often confused with rollback and détente. Rollback sought to push communism back, while détente aimed to reduce tensions with the Soviet Union. Containment occupied a middle position: preventing further expansion without necessarily overthrowing every communist government.