Are You in Range of Kim Jung Un?
cannorthkoreanukeme.com
cannorthkoreanukeme.com
What is happening is positioning and tactics, and honestly I think you have to play the tough card against him. The same way that Putin plays the "alpha male", Trump is doing the same. Moral of the story, don't take exchanges of tweets and sound bytes at face value. There is most certainly strategy and misdirection involved.
All of Kim's behavior in recent years points to a very strong will to preserve regime - countless executions, nuclear weapons, and his almost presidential security measures to avoid a South Korean decapitation strike. I don't think he legitimately wants to start a fight with anyone, doing so will be the end of him and his regime whether China intervenes or not.
You just answered why NK doesn't trust West. China is toppling the US. NK can topple SK too.
But I think there are reasons China has got themselves in that position and I don't know that they apply to NK?
But THAAD isn't the only protection against missile strikes; there's a fairly heavy Patriot presence in the area and both Japan and the US have a fairly number of Aegis-equipped vessels in the area as well.