Question

What is the Truman Doctrine?

Answer 1

The U.S policy to contain and challenge communism :)

Answer 2

The Truman Doctrine arose from a speech by President Harry S. Truman. He established that the U.S would provide political, military, and economic assistance to all democratic nations under threat from external or internal authoritarian forces. It effectively reoriented U.S foreign policy, away from its usual stance of withdrawal from regional conflicts not directly involving the United States, to one of possible intervention in far away conflicts.