If, at a minimum, he doesn't fire a missile in the direction of Guam, he loses face.
Face is, of course, of supreme importance in Kim's and China's culture.
Interesting point about “face” in their culture. China said that they would remain neutral as long as USA only did a retaliatory strike. Sounds like they boxed in the fat boy to where they either have to strike first or lose face, or not strike and lose face.
Kim has never threatened a first strike - close reading is your friend
He can go on TV in a week and tell his people that they successfully wiped out half the USA. They can show pictures of Detroit, show video clips of missiles flying, etc.
His people (outside his military of course) will never know the difference, and he can be their hero of the day.
And if he does he will lose a lot more than "face."
I roose face, so ronery. Brow up Guam. More ronery, dead.
The US has had a long standing policy to launch upon missle launch warning. Should the norks launch in the direction of Guam, trump will launch against nk.
The question is what will china do?