Violators of people of other nations don't have a good track record of surviving the experience. Leastwise, not in the past century.
The ideologues must be truly bummed, in NKor. Their policies have destroyed millions and left their economy and society in an utter shambles, let them in perpetual famine (or as near to it as anything), incapability of leveraging any of the good that's occurred in the past 50yrs. They're flirting with toasting their final relationship in this world (China). If they erase that, they've got zero hope but to launch a war. But they'd better review history of the past 100yrs. Attempts to destroy neighbors hasn't gone well for the perpetrators. They'll be no different. And I think they know that.
Hm. Perhaps that's what the "billions" of rounds' worth of recent ammo purchases have been for, guarding against what's being seen as inevitable. Hm.