Tom -- One thing I thought really worked well along the lines of explaining military concepts was near the end of the second chapter when you described what everyone's role would be in the raid to get Maleek, but you presented it as the way Neil saw it in his head. That way you were able to get all that detailed information out to readers, but it wasn't in a dry, clinical way.
Agree on the acronyms bogging down a little in places, but when I went back and reread it all made sense the second time around. Spelling out the acroynms on first mention -- as Sheri suggested -- would definitely help.
Really enjoying it though. :)