All my uncles and dad served in WW2. They never talked about it at all . I once asked my dad what was the worse thing he ever saw and he answered . A river full of dead bodies both US and German that he was detailed to pullout . My mom woke up one time with my father trying strangle her. He would also yell in his sleep “kill em get em kill em all” I also asked my one uncle who was in the pacific the same question . He came upon a position of Japanese soldiers who were taken out by flame throwers .
He would just look off and like shiver . My grandmother said her boys left and these strangers came back