North Korea and The U.S in 2017

It is well known that the U.S and North Korea are not on good terms and have butted heads for a long time. Recently it has escalated with North Korea leader Kim Jong Un refusing to stop testing missile launching and nuclear testing.  Under Trumps leadership the U.S has put two submarines equipped with nukes to "surround" North Korea as a defense system. We have also started building a anti-missile base in South Korea which is one of the U.S biggest allies and long time enemy of North Korea. China being North Korea's only real allie strongly urges against war because of all the North Korea citizens to flee into China to escape the war.  It is unclear to say what will happen but nuclear warfare is the last thing either country wants, so hopefully we can come to terms and have a peaceful solution.