We are being deluged 24/7 by all the media including the Fox New network about how we all should be concerned by the North Korean missile and atomic bomb tests. Trump has surrounded himself with military men who love wars. A lot of pressure is being put on President Trump to make a preemptive strike on North Korea. That would be an unconstitutional act of war without a formal declaration of war by congress.
Remember that North Korea is a sovereign nation and that the U.S. nor any other nation has the right to tell North Korea what it can or can not do no matter what it does. The other enemies the U.S. including Russia and Chine also have atomic bombs and missiles. Does anybody believe we should make a preemptive strike on those nations as well.?
Lew Rockwell has published a great article on this subject that you should read so that you can be informed on the consequences of starting a war with North Korea.