Osprey New Vanguard #11: Kriegsmarine Coastal Forces which details a number of different ship types used by the Germans during WWII. Moderately interesting, if you're a fan of naval affairs.
Then, Lee at the Alamo by Harry Turtledove, which is an alternate history tale in which Robert E. Lee is forced to take a different path while acting for the Union in Texas before Lincoln becomes the President. I found it a very good read, and thought-provoking. A novella that I purchased online.
Finally, Osprey New Vanguard #6: T-72: Main Battle Tank 1974 - 1993 which discusses the tank type that was the main weapon of the Iraqis at the time of Desert Storm. Lots of technical detail.