The way I look at it (which I will readily admit is more stoner paranoia than anything) is war is good, no; great for a tanking economy, I think if presented with a valid reason to act, there will be no sanctions, it will be balls to the wall war, and beyond missiles, NK poses minimal threat to the US, but in a land war they have a fighting chance as simply leveling the country wont be an available option
I'm more interested in how other nations will react, for example Canada went to afghanistan, but stayed the fuck out of Iraq, war fatigue is apparently rampant in the UK as well, but I can't cite any sources for that, just musings with friends from the area, is the threat of a nuclear war enough to rally the allies? (not that we're really needed....)
If so, by forcing a global conflict, we may see a unity worldwide similar to the effect ww2 had on participating nations, or it could just end up being a quagmire like Iraq