The U.S. has no grounds for complaints against North Korea when - in absolute conflict with the requests from China and Russia (who live in that part of the world and actually have a relationship with North Korea) - they persist in their blatantly provocative activities. It is ridiculous and egregious that the U.S. persists in aggressive and provocative behaviors that endanger the rest of the world.
http://www.fort-russ.com/2017/10/us-aircraft-carrier-headed-to-korean.html
