[Symmetry]

North Korea is currently hoping that their ICBMs mean they can toss around nukes in their back yard while not having to worry about the US nuking them back. If they can take out enemy seaports and air bases they might possibly have a chance against the conventional forces already arrayed against them in the Korean peninsula. It's, well, it's a terrible plan but maybe credible enough to dissuade the West from thoughts of regime change.