One major outcome of the Korean War (1950-1953) was that Korea continues to be a divided nation. North Korea became on ally of the United States. control of Korea was turned over to the United Nations. South Korea became a communist nation.

The correct answer is: Korea continues to be a divided nation.<br /><br />The Korean War, which took place from 1950 to 1953, resulted in the division of Korea into two separate nations: North Korea and South Korea. This division has persisted to this day, with North Korea and South Korea remaining separate countries with distinct political systems and ideologies. The other options provided are not accurate outcomes of the Korean War. North Korea did not become an ally of the United States, control of Korea was not turned over to the United Nations, and South Korea did not become a communist nation.