One reason a lot of veterans 'don't talk about it' if they have been to war is because the stories are so bizarre at times, people think your are full of crap and making up stories.
Madness string 105870
No, son. Don't believe all that talk about us taming the galaxy through courage, strength of character, ingenuity and indefatigable will. We conquered the galaxy by taking the biggest, blockiest ships we could make, covering them in dubious weapons, and ramming them as far as we could into giant alien meat wall.... things.