That is, if you keep causing troubles, confident that U.S. ground troops are stretched thin and can't deal with you, you might end up on the receiving side of U.S. nuke.
The other option is to wait until the mad Mullahs kill 10-20 million first with a 'pre-emptive nuclear strike'. The left just isn't happy unless maximum death tolls are achieved.
When things get really 'tense' and 'ramped up', you can be sure these North Korea threads will stretch wayyyyy past 15 posts/replies or so....