Hwasong-15A -- Why the HS-15 was changed ?
Norbert Brügge, Germany
There is now a photo of the launch. It shows a shortened HS-15 with a modified WH. It is unclear why the first stage were shortened. One reason may be that the HS-15 is unsuitable as an ICBM and really only corresponds to the upper stages of a future Unha-X (SLV) and the HS-15A is optimized as an LRBM.