@RedKing: I guess they could come to an agreement that the US troop stuff stay in the southern part? Since they definetly ain't leaving, but being there is better than right on the border.
Yeah, I dunno. During actual hostilities, there would have to be some kind of coordination, and I'm sure the northernmost portion would be considered a no-go zone for Americans, which we'd probably agree to as long as the PLA made sure to occupy and pacify that territory. If it became a safe haven for DPRK forces then all bets would be off, which would be bad.
Post-conflict, I think the best answer would be reunification, but jesus the cost....I think the US and China would have to jointly invest hundreds of billions to keep Seoul from going bankrupt. I mean, German reunification was expensive, and that was with an East Germany that still had basic infrastructure and industry in place. Absorbing a war-torn North Korea could completely bankrupt South Korea. Maybe with some treaty that prohibits either China or the US from basing any military forces there? Seoul is relatively pro-Beijing and pro-Washington, so I think they could play that arrangement smartly and profit from being ostensibly neutral.
No matter how you swing it, military action in North Korea would be costly as fuck for the United States. It might make us look fondly on the Iraq War.
@wierd: It's completely disingenuous to say that China hasn't criticized North Korea for its actions. That's Trump bullshit.
And the last time they officially did so (in May), North Korea
fired back and sent signals that they felt like they didn't necessarily need Big Bro Beijing anymore. Which is also probably factoring into China's reaction here.
They've also halted shipments of coal and oil to NK on multiple occasions in the last 18 months, largely correlated to missile tests. My feeling on this is that China is trying to 'domesticate' them through increased trade ties. That approach has worked very well to tamp down tensions with Taiwan. But because of NK's idiosyncratic despotic government, it doesn't necessarily work as well there.
I believe even SK doesn't quite want to help North Korea anymore... and are perfectly willing to let them rot.
You'd be wrong there.