Hopefully "Korean" won't see this, it will break his heart.
Jokes aside, I think Korean, Japan and China/Taiwan and Vietnam should form a common market and introduce a new common currency, even with hostility among them. Differences are always there, it doesn't have to be solved before these countries look into their common interest. All these countries have very similar economic models and a common stable currency like Euro will be good. In addition, these countries should joint research on renewable energies so they are not too dependant on foreign oil.
