While I'm recommending books, I have to throw in "Chasing Ghosts: Failures and Facades in Iraq: A Soldier's Perspective," it's a great read on the Iraq war and only $11 on Amazon right now.
https://www.amazon.com/Chasing-Ghosts-Failures-Soldiers-Perspective/dp/0451221214
If you have any recommendations yourself I'd love to hear them.