Ahem...
Just to play devil's advocate here
: possibly a
little war might be a
good thing. Get rid of the crazy circus monkies that run the North. The west (us) is in a far better position to wage a limited war in the peninsula than it was 60 years ago. The technological advantages alone are overwhelming.
Can't see China really being too bothered providing S. Korea agreed to demilitarize the area afterward.