Answer:
The Korean War threatened world peace in several ways. Firstly, it was fought between two opposing ideologies, communism and democracy, with the Soviet Union and China supporting North Korea while the United States and other Western countries supported South Korea. This led to a risk of the conflict spreading beyond the Korean Peninsula and escalating into a larger war between superpowers.
Secondly, the use of nuclear weapons was considered during the conflict, which could have had catastrophic consequences for global security and stability. The United States government even considered using atomic bombs against China, which would have likely escalated the war and caused immense destruction.
Finally, the Korean War also further polarized the world into two opposing camps, with the Soviet Union and China on one side and the Western democracies on the other. This division deepened Cold War tensions and increased the risk of future conflicts.
Given these factors, I would set the event of the Korean War on the doomsday clock at around 5 minutes to midnight. While the conflict did not result in a full-blown global war or nuclear exchange, it represented a significant threat to world peace and security at the time.