I've been waiting for somebody to look at that aspect of it. Particularly their army.
The people of NK have been literally starving to death under this regime. Their economy has completely collapsed. They barely subsist on charity from other countries. And now, even that is starting to dwindle.
Once the fit hit the shan, I wonder how much fight the NK army would actually have in them.
If the NKs just put signs at the DMZ saying, "Food, 30 miles south!" we would see a massive stampede.