Yes, the US-led army should have marched into North Korea as UN forces did, and as they went to conquer more land, they should have initiated discussions to cease the combat, and the UN commander did not expect the Chinese would participate, and if they did, UN forces would have defeated them.
The Army's Camp Humphreys, now the largest US post outside of the United States, was built up in the previous decade in part to put space between US Soldiers and North Korean artillery sighted in on their long-time home at the Youngsan Garrison in downtown Seoul.
After three years of violent and exhausting warfare, the United States, the People's Republic of China, North Korea, and South Korea agreed to an armistice, thus ending the Korean war.
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