What goals did the u. s. achieve by fighting in korea? what goals did it fail to achieve?

What goals did the United States achieve by fighting in Korea? What goals did it fail to achieve? What goal did it achieve: A strong, independent, and stable Japan. It achieved the goal of fighting "communism" spread by Soviet Union without getting into a direct, hot war with them.

It did not achieve Korean unfication, however, I am not certain that was the goal of any side except the North Koreans.