This is the best option at this time. NK concerned they are fucked if Trump is taken down and being threatened by deep state...and China still not on board. That however is changing quickly as many things in the new trade deal will leverage China financially. Also, militarily China is not nearly as strong as many people think. They have very little ability to project power (military) beyond the South China Sea, and they can't defend it and deal with a war on their western front...Pakistan and India...probably a coincidence...