I believe the Phat Un is actually a pretty shrewd guy, as are his cronies, playing Trump for all its worth knowing ultimately the US will certainly not go pre-emptive given the huge risks involved.
Trump on the other hand is an utter buffoon as are Nikki Haley and the others threatening all sorts of **** only to back down.. then threaten... then cajole... then threaten... the narrative coming from the US is pretty unstable.. worrying.. but ultimately toothless.
My only real worry is the Trump ego wildcard... admittedly a long shot but cannot be discounted.