@oristarA,
You cannot expect that China will stay put. The call for further reforms [on]
to the Chinese political system has been intensifying. The exclusive North Korean dictator Kim Jung Il is corrupt, but not dumb. He knows this very well.
That was why he went away from the six-party talk and met
alone with
the Americans [alone], which has been received internationally as a slap on the face of China.
Although China is/has been humiliated badly, [but China]
it so far has no idea about how to deal with the old rascal. Kim is good at [playing] brinkmanship. He knows how to make China mad and yet China will not punish him for provocation.
Just a casual talk, JTT.
There's a difference in meaning that you might not be aware of, Ori, between "a casual talk" and "casual talk". The former describes you or someone giving an informal speech/talk to a group and the latter describes a casual discussion among friends.
What I am not sure about is:
1) Is the collocation proper with "stay put" and "call for further reforms"?
I don't think that 'stay put' is what you want here. I think that you may mean "put up with" or "tolerate" N Korea's "provocations".
2) Should "will not punish him for provocation" be "will not punish him for his provocation"?
I think I'd use 'his' if you want to suggest this particular instance.