Nobody wants war, but the little fatblob is trying awfully hard to get one started.  Everybody is getting nervous.  That is how this stuff starts.  China can take him out very easily.  He is their problem, and now he is becoming our problem, Japan's and SKorea.  This guy shows no remorse to his threats, and he is moving forward so fast it is shocking.  He is threatening us with his HBombs now.  Can we afford to ignore him?  How do you ignore that?
There are no ways to end this but war at this point unless he stands down.  China could get him and it would save the lives of tens of thousands, not millions.  "The needs of the many outweigh the needs of the one."  Even Spock knew that.  Trump needs to give him the ultimate ultimatum: stop or die.  He should do it publicly, and make it formal, on TV for everyone to see.  If that little punk makes one move at that point to launch or shoot anything it should be the end of him.  We have no choice but to believe he means what he says.