Explain how president trumans knowledge of previous historical events influenced him to initiate us involvement in korea

Truman defended the Truman Doctrine that meant that if a capitalist country was being attacked America had a duty to give military aid to that country. Truman also knew that the invasion of Korea by the USSR could cause a domino effect and they would dominate one country after another. He had this knowledge since WWII with Germany’s actions.

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