China only cares that the US troops don’t move further up north, NK is a buffer for them if that buffer isn’t needed (as the reason for their presence will be g

China only cares that the US troops don’t move further up north, NK is a buffer for them if that buffer isn’t needed (as the reason for their presence will be gone) then it won’t be as much of a problem. In fact this might be better for them since it reduces the justification of deploying US ABM systems in their back yard. Currently the US can station all the missile defense which also can be used for anti-satellite purposes and no one can bat an eye as long as NK continues to pollute the Sea of Japan with hydrazine on a regular basis (at this point I think the true goal of their missile program is to wage economic war on Japan by killing all the Tuna with rocket fuel).