What was the main goal of US involvement in the Korean war?

The United States and the Korean War. The United States had a few central goals for its' part of the Korean War. The main goal was to protect South Korea from invasion and possible takeover by the North Koreans. This would achieve the second goal, which was the spread of communism.

Explanation:

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the mongolian invasion of china and central asia resulted in a disruption of the silk road as the chinese garrisons lost support from the chinese kingdoms which fell under the mongols. however, as the mongols established a formal dynasty in china, the successors of genghis khan restored the garrisons along the silk road allowing the safe travel caravans again.