The thing is, North Korea is right next to South Korea, so they don't need fancy missile to stir up trouble. Simple artillery is enough, as they actually did i

The thing is, North Korea is right next to South Korea, so they don't need fancy missile to stir up trouble. Simple artillery is enough, as they actually did in 2010: https://en.wikipedia.org/wiki/Bombardment_of_Yeonpyeong https://en.wikipedia.org/wiki/Bombardment_of_Yeonpyeong And, contrary to some popular theories, actually attacking your neighbor is not that useful for bargaining. All it does is to make other countries very angry and call for more hardline policies. So the best NK can do is keep its madman shtick, not actually use the missiles, and demand larger concessions. But other countries would want, in turn, some semblance of promise that NK will stop being so crazy if it gets economic aid. So we're back to stalemate.