[Filibuster_60]

It's putting China in a tight spot for sure. Indeed NK acts under the assumption that China's behind them, even when that's not really the case. They can afford to do this because they know that Beijing infinitely prefers a divided Korea with the North destitute and Communist, to a unified Korea ruled from Seoul and most likely allied to the US. Therefore they can get away with actions that clearly jeopardize China's pragmatic interests.

[Monty22]

Well, if history is any guide, China helped them in the first korean war, I'm sure they will in the second. This time it won't be so easy to hide though.

[McGavin999]

The Chinese are terrified of Japan going nuclear. If anything will get them going on this it's the thought that unless they do something quick the Japanese will have to become a nuclear power in order to defend themselves.