Final answer:
The goal of the Truman Doctrine was to contain communism and prevent its spread to other countries.
Step-by-step explanation:
The goal of the Truman Doctrine was to contain communism wherever it was found and stop its progression to other countries. It aimed to provide economic and military aid to countries threatened by communism, in order to prevent them from falling under Soviet influence. This was a response to the spread of communism during the early years of the Cold War. For example, the United States provided support to Turkey and Greece to prevent them from being taken over by communism.
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