Yeah, I just don't see how South Korea, maybe even parts of southwestern Japan, avoid getting blown to hell by a desperate NK leadership [short of a wide-scale, heavy, and surprise bombing campaign by America, South Korea, and China, and even that would be iffy] in the event that a war does happen.
And right now you've got Pence and Trump saying that they're tired of being patient with North Korea on one hand and North Korea saying they're going to start doing weekly missile launches on the other. It's definitely the right time to feel a little nervous.