They went back home to a broken, burned homeland. Returned to the civilian life to rebuild it brick by brick wearing a mask to try and decrease the smell of rotted flesh. Most of them were just soldiers, but many committed atrocities that they were never punished for. But of course, no Americans were punished for taking all the Japanese Americans homes and businesses and incarcerating them for years without trial. And no Americans were punished for firestorm burning of German and Japanese cities. The cities weren't burned because they were military targets, they were burned to kill the German and Japanese workers that were working in the defense plants. Course babies were burned alive too, along with children, old people, wheel chair bound disabled, and mothers.
No one wins at war, and no justice is found. Just death and destruction, and crying by all sides saying 'Never again'. But people watch John Wayne and Rambo strut their stuff in war movies, and another military recruit is born, looking for glory, but only finds empty death.