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The Truman Doctrine underpinned American Cold War policy in Europe and around the world. In the words of historian James T. Patterson, "The Truman Doctrine was a highly publicized commitment of a sort the administration had not previously undertaken. Its sweeping rhetoric, promising that the United States should aid all 'free people' being subjugated, set the stage for innumerable later ventures that led to globalisation commitments. It was in these ways a major step."