Most of my military fiction are based on fictional wars.
I really enjoyed the earlier novels of Dale Brown (Silver Tower, Sky Master, Chains of Command), Larry Bond (Red Pheonix, Vortex) and Harold Coyle (Team Yankee, Sword Point), Payne Harrison (Thunder of Erebus). Not sure about the latest stuff from Brown as he churns out 3 a week these days and there’s only so many times you can read about McLanahan disobeying orders. Clancy’s Red Storm Rising probably tops the list though.
Eric L Harry - Arclight aka Oops we’ve accidentally nuked America. Lube up, this is gonna hurt.
Eric L Harry - Invasion. China’s eventual attempt at global conquest.
Clancy - The Bear Vs The Dragon. I liked the military bits, although he slips into a rather ugly Sinophobic slant outside of the action sequences.
Richard Marcinko. I prefer his earliest stuff, especially the one with Manny Tanto. However, I wouldn’t be suprised if people find him to be a total asshole and hate his books. The Marmite of special forces fiction.
Sven Hassel and Leo Kessler. Achtung! Spitfire! Schnell! Schnell! Although I’ve not read Kessler in years, there was stage I got all of them from the library. I remember really enjoying a few which followed ex-SS in the French Foreign Legion in Vietnam too but can’t remember which ones they are, probably the SS Wotan or Otto Stahl books.
Edit: Doh! I went back to the thread list for this subforum after posting and found another military fiction thread probably more suited to this reply. I’ll leave it as it is though.