Final answer:
The Truman Doctrine influenced the Marshall Plan and the Eisenhower Doctrine.
Step-by-step explanation:
The Truman Doctrine influenced the following future policies:
- The Marshall Plan: This policy provided economic aid to help rebuild European countries after World War II.
- The Eisenhower Doctrine: This policy stated that the United States would provide military assistance to Middle Eastern countries threatened by communism.
Learn more about influence of the Truman Doctrine on future policies