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.

[caption id="attachment_204859" align="aligncenter" width="640"] North Korea's Pukkuksong-1 on show at last Saturday's military parade I Photo: NK Pro[/caption]

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