I went to work for GE after I got back from my Asian Vacation. The guy I worked for was on Iwo, a BAR man. He said he lasted 7 Minuit's, his ammo humper was KIA and so was most of his squad. He met his wife in the hospital, had four kids and was the most unflappable person I ever met.
Well if you make it though something like that and aren't insane then I guess there's nothing much afterwards that can bother you. Vets get far too little credit for what they've been through. I'm glad movies like this are around to remind the rest of us.