While I agree the North Koreans are not to be trifled with, the general isolation of the country indicates to me that they would not last in a war of attrition. Admittedly China has been known to back them in the past and that kind of support now would make a huge difference, but with the way modern China is unfolding, coupled with North Korea's nuclear development, makes me think China's views towards North Korea may be shifting from "asset" to "liability".
If there was a outbreak of war between North and South Korea again, then it is not impossible that China would back off entirely and South Korea's allies would move in and cream NK before things got really bad.
Mind you, that's the best case scenario and is thus extremely unlikely. Lets just hope the status quo lasts long enough for North Korea to collapse more peacefully.
__________________
|