What was gained by the Korean War

North and South Korea agreed on a demilitarized zone at the 38th parallel and an armistice was signed in July 1953. Korea was divided between communist NK and non-communist South Korea.

Explanation:

to protect the united states' role as a world leader, president truman wanted to prevent the soviet union from spreading communism beyond its post-world war ii boundaries. he declared that the united states must assist any nations struggling to prevent a communist takeover.