I doubt that the Chinese troops are there to protect Kim Jong-un’s back and his military know it. The prospect of Chinese ground troops and massive American naval bombardment ought to give them something to think about when they are pondering Kim Jong-un’s future. The best outcome would be regime change without a shot being fired. But there’s always Door #2 if they are high rollers.
“Do you have any idea how _______ busy I am, Hans Blix? Well, ____ you! You want inspection? Well, inspect that, you ___-_____ piece of ____!”