I've said this before, but I jump around way too much when reading. I did, however, finish a TRADOC monograph on the writing of 1993's FM 100-5 Operations. It's an interesting official history that gives a dimension into early 90's national security policy that is very much overlooked. I'll write a review tomorrow.
I'm about halfway done with Claus Telp's 2009 book on the birth of operational warfare from Frederick the Great to Napoleon. Definitely a contribution to the literature, and his analysis of the Jena campaign is a great depiction of Napoleon as "strategic aggregator."
One of my focuses right now is reading primary sources of late 19th century and interwar (1920s-1930s) defense thought. Having read Shimon Naveh, Antulio Echevarria, Robert Citino, Chris Bellamy, and James Schneider's treatments of those respective periods I think there is a lot to turn from some of the intellectual problems those authors faced. For now, since I have more than enough reading to go around, I'm going to focus just on finding Sigismund von Schlichting and Rudolf Caemmerer's books, both published at the turn of the century.