Final answer:
The Truman Doctrine influenced the Marshall Plan and Eisenhower Doctrine.
Step-by-step explanation:
The Truman Doctrine influenced the Marshall Plan and the Eisenhower Doctrine. The Marshall Plan, officially known as the European Recovery Program, was a policy that provided financial and economic assistance to Western European countries after World War II. The Truman Doctrine set a precedent for the United States to intervene in international affairs to contain communism, which later influenced the Eisenhower Doctrine, which extended this policy to the Middle East.
Learn more about The impact of the Truman Doctrine on future policies