More urgently, consider the implicit motivation for such an action:
http://english.hani.co.kr/arti/english_ ... ign=bufferWhite House National Security Council senior director for Asian affairs Matthew Pottinger reportedly said in a recent closed-door meeting with US experts on Korean Peninsula issues that a limited strike on the North might help in the midterm elections.
It's a wag-the-dog, in other words. And it's a repulsive strategic consideration: to wage war with the intention of improving one's potential margin in Congress.
here are some analyses explaining why the "bloody nose" idea is destined to failure and highly dangerous to global security.
https://www.theatlantic.com/internation ... ea/551924/
https://www.axios.com/why-a-bloody-nose ... 0605f.html