After the DPRK’s big military parade, solid-propellant ICBMs are the hot topic. We’ve seen smaller solid propellant missiles, like the PGS-1 and PGS-2, but we have not yet seen anything big enough to cover the continental United States.

However, at least when compared to other countries’ solid propellant programs, the DPRK seems unlikely to be close to a solid-propellant ICBM or the reliable large-diameter solid-propellant motors necessary for an ICBM. In contrast, we’ve seen a number of subsystem