Business Insider:
North Korea’s military parade on Thursday featured much of what we’ve come to expect from Pyongyang: grandiose speeches, choreographed crowds, and a procession of missiles.
But it also featured a mystery missile never before seen.
While many analysts have focused on the big intercontinental ballistic missiles like the Hwasong-14 and the Hwasong-15 — and the threat they pose to the US mainland — a smaller missile slipped by relatively unnoticed.