Which policy aimed to prevent the spread of communism by restricting its expansion?

• A. Containment
• B. Deterrence
• C. Isolationism
• D. Appeasement

Answer: (A)

The main concept being tested is preventing the spread of a rival ideology by building a strategic, long-term stance to keep it from expanding into new areas. Containment describes this approach: the idea was to stop communism from spreading beyond where it already existed, through a combination of political, economic, and military means. This included supporting countries resisting communist influence (as seen in the Truman Doctrine), rebuilding war-torn economies to reduce appeal of communism (the Marshall Plan), and forming alliances and military bases to deter expansion (like NATO and related actions). By framing U.S. policy around stopping expansion rather than conquering territory or appeasing aggression, containment guided key Cold War moves from Europe to Asia, including conflicts like the Korea War, to prevent domino effects across regions. Deterrence focuses more on discouraging aggression through threats of retaliation rather than outlining a broad strategy to limit ideological spread; isolationism and appeasement describe different approaches not aimed at containing a global ideological expansion.