China and Russia are said to be angered over US deployment of its THAAD missile defense system to South Korea. They are deeply concerned about the invasiveness of the system’s powerful radars.
When North Korea’s threat via nuclear capable delivery systems is removed, THAAD and its “prying” eyes goes home.
The problem is not THAAD; the problem is a North Korea armed with nuclear capable ballistic missiles.
China and Russia both know what has to be done.
China needs a strong, stable ally on the Korean peninsula—a non-nuclearized ally. When that is achieved, China, Russia, North Korea, and South Korea all win.