China has a lot more clout than this author will admit. PRC is DPRK's biggest trade partner, and makes just about all of North Korea's domestic goods. If China had the will, they could easily squeeze DPRK economically. Here's two sayings the Chinese will understand: "To catch a thief, first catch his king" and "point to the mulberry, berate the Pagoda tree". That's why the west has to put pressure on China to contain DPRK

The rest of the world needs to get real: Cut all food/ monetary aid to North Korea, it just get stolen and given to the  military anyway. Starve his army out, they may have a lot of troops and guns, but can't fight on an empty stomach.  As in the past, the Kims make a lot of noise and threats and go away for a while once they get their payoff, but never hold up their end of the deal - more talk is useless. Lastly, redouble propoganda efforts and keep smuggling in media and information from the outside world to show North Koreans they are being lied to and kept slaves