Some questions for those of you in the know...
How much of this is posturing on the part of Kim Jong-un to secure power with the old guard of his nation?
How much of this is, for lack of a better term, asymmetrical warfare on the part of the PRC/MSS? Stir the pot, see and gauge our military deployment strategy and responses etc etc.
How long before China rides to the rescue, again?
Edit: Looking for your opinions on these questions, not trying to state them as facts.