Origins: The Truman Doctrine & Marshall Plan

From the The Cold War: Ideologies & Conflict (1947-1991) curriculum · Updated Jan 11, 2026

Containment Policy Explained

The Truman Doctrine (1947) was an American foreign policy that pledged to contain the spread of communism in Europe. This led directly to the Marshall Plan, which provided over $12 billion in economic aid to rebuild Western Europe.

Essay Key Points:

Ideological Split: Capitalism (USA) vs. Communism (USSR).
Economic Aid: Used as a tool to prevent political instability. The US believed poverty was a breeding ground for communism.

Study Tip: When writing essays, argue that the Marshall Plan was arguably the most successful US foreign policy initiative of the 20th century because it solidified the Western Bloc.

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