They started it. They are talking smack. China/USA is a symbiotic relationship that is dependent upon each other, and Russia is in shambles. They may talk - but would do nothing. Especially for Sung who is a crazy bastard - we'd be doing the planet a favor. Now is the best time - to kick ass - and show the world America means business.
Talking smack does not count. Especially when you can slide into a global nuclear war very quickly.You must be justified and have a good reason when you are dealing with three nuclear powers within arms reach of each other.