containment, policy of

A United States foreign policy doctrine adopted by the Harry S. Truman administration in 1947, operating on the principle that communist governments will eventually fall apart as long as they are prevented from expanding their influence.

Note

The policy of containment was used to justify American involvement in the Korean War and the Vietnam War.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.