North Korea’s repeated nuclear and missile tests have caused panic in the region. Japan is frightened because the ballistic missiles are flying over its territory. In addition, North Korea has threatened retaliation in response to military drills, stating that the “next” target is Guam, a U.S. territory. How North Korea’s neighbors are responding to this aggression is essential because population centers must be protected if Pyongyang launches a missile attack. I have written a commentary for RealClearDefense here.