Here are some books, both from real life and fiction that are written by soldiers...feel free to add to the list if you know of any other good ones!
From Baghdad With Love- Lieutenant Colonel Jay Kopelman(Marines)
From Baghdad to America- Lieutenant Colonel Jay Kopelman
Heroes Among Us: Firsthand Accounts of Combat From America's Most Decorated Warriors in Iraq and Afghanistan
American Heroes- Oliver North
Path of the Lost- J.D. Gilliam(an Army Specialist in the National Guard that I know)
Fables of the Fallen- J.D. Gilliam