just a short drive from the front gates of the u.s. army's fort hood, we meet van gilbreath, one of the people who helps run this post. over a game of pool, we start learning more about what changed his life forever. when did you serve in iraq? >> in '04 to '04. >> reporter: specialist gilbreath was in kuwait as the war began. he was about a abrams tank system mechanic and was part of the invasion of saddam hussein's iraq. he joined the army in 1999 and still serves in the national guard. >> seemed like it was all going to smooth out and iraq could continue on a nice path. >> reporter: it was of course anything but a nice path. more than 500 soldiers from fort hood, texas, were killed serving in iraq. ♪ more than any other u.s. military installation. about one out of every nine americans who died in iraq were deployed from this base. here at fort hood, feelings about what happened in iraq in the past vary. so do feelings about what should be done in the future. but in this community,...