Which policy guided U.S. strategy to stop the spread of communism by diplomatic, economic, and military means?

• A. Containment
• B. NATO
• C. Marshall Plan
• D. Second Red Scare

Answer: (A)

Containment is the approach that aims to prevent the spread of communism by combining diplomacy, economic aid, and military deterrence. The United States pursued it by supporting countries resisting communist influence (Truman Doctrine), helping rebuild European economies to make communism less appealing (Marshall Plan), and creating alliances like NATO to deter Soviet expansion. These tools together show a single, overarching strategy to stop communism from spreading rather than pursuing aggressive confrontations everywhere. The other options refer to specific programs or contexts—NATO as a military alliance, the Marshall Plan as economic aid, and the Second Red Scare as domestic fear—while containment describes the broad approach guiding U.S. actions.