It is all three which China tries to achieve. This is a big move. China recently made waves on multiple fronts , which gave us enough clues to get some decent picture of what they are up to. I wonder how Americans reacts. So far they are quiet.
let the Chinese bring "freedom" to the North Korea....
The Chinese can roll over the N.K. soldiers any time they want. I can't imagine the U.S. is going to do much about it, except warn the Chinese about staying out of S. Korea. At this point, it's almost a humanitarian act.