It really seems like things could heat up quick between the U.S. and North Korea. The new missile launched by the North this past weekend was a two stage rocket with greater range than anything tested by the regime before.
Story here: http://www.cnn.com/2017/07/05/politics/us-north-korea-launched-new-missile/index.html
It only takes one action from either side and for the other to retaliate and this thing could blow up. Literally.