What did The Truman Doctrine accomplish?

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The Truman Doctrine outlined a containment policy against communism, which aimed to stop its spread and influence. It was used as a justification for U.S. support of various anti-communist governments and movements around the world, including in Greece and Turkey. It did not have any direct impact on the end of colonialism or the establishment of Soviet control over Eastern Europe. It also did not officially bring the U.S. into the United Nations. While it did establish a more assertive U.S. foreign policy, it did not necessarily create a unilateral approach.

What Did the Truman Doctrine Accomplish