Good Idea?

In today's Wall Street Journal, there's a piece by Bruce Gilley titled "An Immodest Proposal". In it, he writes:

"Here is an immodest proposal that could reduce global tensions, bring justice to millions, and cement China's emergence as a great power: Beijing should invade North Korea on humanitarian grounds and establish a China-backed transitional regime there. The U.S. and its allies in Asia should provide diplomatic and logistical support to the operation, while the U.N. should provide its legal blessing."

I'm not sure if this idea's crazy or ingenius.