Korean War
History of the United States
US Marine Corps

Why did the United States join the Korean War?

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April 24, 2009 3:45AM

The United States joined the Korean War because the US feared that all countries in Asia would be turned to a communist country. At the time of the Korean War, China was a huge factor because China supported North Korea. If the United States did not support South Korea then the domino effect would have been put to effect.

In other words.. The United States joined the Korean War to resist communism from spreading.