To those teaching courses on military power and effectiveness: the full text of Steve Biddle's Military Power is now available through @JSTOR. Here's the link: https://www.jstor.org/stable/j.ctt7s19h
Many thanks to @WarOnTheRocks and Peter Hickman for (indirectly) alerting me, by way of this article: https://twitter.com/WarOnTheRocks/status/1260651068137992192