“Containing” Communism

In 1823, President James Monroe issued his famous “Monroe Doctrine,” warning European powers that the United States would act to halt any new attempts to colonize the Americas. In 1947, President Harry S Truman promulgated the “Truman Doctrine,” warning the Soviet Union—which supported a threatened communist takeover of Greece and Turkey—that the United States would act to halt the spread of communism wherever in the world it threatened democracy.

The Truman Doctrine had its basis in a proposal by State Department official George F. Kennan (b. 1904). The proposal stated that the most effective way to combat communism was to contain it, confronting the Soviet Union whenever and wherever it sought to expand its ideological influence. Thus the “Cold War” began in earnest, and with it, a National Security Act, passed in 1947. The act reorganized the War Department into the Department of Defense and also created the Central Intelligence Agency—perhaps the most controversial federal agency ever established. The CIA had as its mission covert intelligence gathering, which meant that the CIA sometimes functioned with neither executive nor legislative knowledge, let alone approval. In the name of fighting communism, the National Security Act had created the closest thing to a secret police (long a mainstay of oppressive eastern European regimes) this nation ever had.