History might not be a perfect guide, of course, given the unusual circumstances we now face. North Korea has reached the point of perfecting its missile systems. It may well be unwilling to subordinate the pace of testing to political calculations when it is so close to the goal-line. As for the U.S., whose president has elevated unpredictability to an art form, it is hard to turn to the past for reliable instruction regarding the future.

Read Here – International Crisis Group