What was the primary objective of the Truman Doctrine?

The primary objective of the Truman Doctrine was to contain the spread of communism. This policy was introduced by President Harry S. Truman in 1947, primarily in response to the threat posed by Soviet expansion in Europe and other parts of the world. Truman articulated that the United States would provide political, military, and economic assistance to countries resisting communism, specifically citing Greece and Turkey as immediate concerns. The doctrine marked a significant shift in U.S. foreign policy, moving from isolationism to a more interventionist stance aimed at preventing Soviet influence from gaining ground in vulnerable regions.

The other options reflect different aspects of the post-World War II geopolitical landscape but do not directly align with the central purpose of the Truman Doctrine. Promoting free trade in Europe and supporting the construction of the Berlin Wall relate to broader economic and security strategies of the time, while disbanding European military alliances would contradict the doctrine’s goal of strengthening ties with allies to deter communist threats.