I feel like it's inevitable we wake up some morning and North Korea has landed a missile in Japan or South Korea. More likely by accident due to a disintegration.
Markets will then gap like Brexit as we await a Trump response. Trump is the unknown here.
A game of chicken played by two cocks.
Note: you worry about NK but it is Trump's actions/words that are escalating the issue. He is also trying to break the Iranian agreement, kicking Russia out of their diplomatic territory on US soil, threatening China with trade wars, trying to bully South Korea & Japan on trade, breaking NAFTA, and isolating immigrants on DACA. Trump has been pretty busy the last week.