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Truman Doctrine
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Truman Doctrine

United States history
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Britannica Editors
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree....
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History

Truman Doctrine, pronouncement by U.S. Pres. Harry S. Truman declaring immediate economic and military aid to the governments of Greece, threatened by communist insurrection, and Turkey, under pressure from Soviet expansion in the Mediterranean area. As the United States and the Soviet Union struggled to reach a balance of power during the Cold War that followed World War II, Great Britain announced that it could no longer afford to aid those Mediterranean countries, which the...

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