What if North Korea does attack?

[Posteritatis]

61. The US would absolutely be heavily involved in that kind of war.

There's no way they couldn't be, especially given the losses the US Army would take in the first couple of days.

If things went hot, by the time the rubble started bouncing in North Korea a sizable chunk of the US army would be on the ground, South Korean leadership or not. There's no possible way that people would handle that in any way less than going at it flat out if North Korea actually tried to invade.

Smaller things that actually do 'just' count as provocations, like shelling border islands or torpedoing another South Korean ship? That's one thing. The difference with that agreement is that the South could theoretically call US assets in on any immediate retaliation. If North Korea actually out-and-out invades, or shells Seoul or something like that? The US would be quite heavily featured among the forces going back north.