Koreans have always struck me as among the most nationalistic people on earth, so it’s always struck me as plausible that someday the peninsula will be one nation-state. Unfortunately, I don’t have any brilliant suggestions for how to get there.
One possibility is that the successful South Korean state will, in the fullness of time, absorb North Korea into simply Korea, much as West Germany absorbed East Germany after the fall of the Berlin Wall and became Germany.
Here’s a question: what would South Korea do with North Korea’s nuclear weapons and ICBMs programs?
If they kept them, would Japan nuke up? What else would happen?