It is clear by he attempts by Trump to derail Tillersons efforts to resolve the NK situation that Trump does not want a diplomatic solution he has decided on War and he is also lining up his next target namely Iran.
I would like to think NK will come round and start talking to someone..even Germany or France...but I don't believe it will happen. As ugly as Trump is, I think war is going to happen and it will be probably be large and quick.
Tillerson is at least trying, and for Trump to publicly derail his attempts is disgusting. Not sure how Tillerson can stay in the job now. Also looks like Britain is in the market for a new Foreign Secretary.