Traveller -- suggested readings for a space marine?
I've rolled up a four-term former space marine for an upcoming Traveller game, and I'm looking for inspirational readings. Starship Troopers is a no brainer -- I've never read it, and it's an obvious place to start. A friend, Bill, also suggested the novel The Short-Timers, by Gustav Hasford. It turns out that the full text of the book is available from the author's website, but I'll probably end up checking it out of the library.
Any other suggestions?
I'm open to fiction or non-fiction, and I'm not concerned about the politics of the recommended book. (Movies are fine as well, but I'd be less likely to get around to watching a movie than I would to checking out a book.)