system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: North Korea-what's the situation with its nukes, how "good" is its army and who would win in NK vs USA?
gpt
There is no doubt the US could destroy North Korea in any sort of war.

The question is, could they:

* do it without suffering politically unacceptable losses?
* do it without massive civilian losses in South Korea?
* do it without drawing China into the conflict?