This , I suppose, is the ‘short victorious war’ illusion. If there is any place the US should be able to do it it is against the NORK’s. Those people offer a remarkable array of target rich environments if it comes to shooting. The collapse of the regime would probably ensue in the wake of what the USAF and US navy should be able to met out.
Shoul NK collapse, whether by war or economics, the US, Japan, South Korea, and China would have one heck of a welfare relief project for the next year.