If this is actual war footing, and not just some hyperbolic descriptor from the NorKs to sound scarier, then L’il Kim needs to s#it or get off the pot right quick. Even mature militaries like the US can’t maintain a war footing for more than a few weeks without actually engaging in combat, and if they step down again there’s a lot of maintenance and recovery that needs to happen before they can do it again.
The NorK army is likely just barely at readiness, so this is going to put an incredible strain on their forces (if true). Might be a window there in about 3 weeks or so when they have to wind down where some clever intrusion agents could get a lot done.
The war would be ugly and that fear is what the urchin is counting upon.