With the Chinese seeing how aggressive Trump will be following the accommodating Obama administration, Charles Krauthammer said that missile defense is a central concern, and it may greatly upset China if the U.S. uses such a defense system to protect South Korea from the Kim regime’s missiles:
The worrisome thing here is the outside partner. This is not just a three sided game, North Korea, South Korea, and the U.S. — it’s the Chinese reaction. The Chinese are watching the United States after eight years of withdrawal, accommodation, and essentially no response to Chinese expansion — they’re seeing the United States now asserting itself. The U.S.S. Carl Vinson an aircraft carrier is now in the South China Sea. Trump has just sent B-52’s into South Korea as a way to threaten the North Koreans, and everyone knows what they carry, they carry nuclear weapons. But the worst thing from the Chinese point of view is the THAAD: This is the antimissile system. The Chinese react to that the way the Russians did to the anti-missile system we wanted to put in Eastern Europe. They get very upset because it can be applied against them. Yes, our reason for doing it is to defend the South Koreans against the North. But the overall effect is to put up a missile shield that could degrade and weaken the Chinese arsenal. They know that. They are very worried about that. And they’re getting semi-hysterical. Global Times which is a government-friendly publication just this week said that the government of China will no longer rule out a first nuclear strike. That’s a big deal. That’s not an official statement, but it tells you how much the Chinese are upset, which is why we are now rushing to install the THAAD by the end of April before the election so at least it’s a fait accompli — but this is a tinderbox.