From THE WAR Episode 4:
QUENTIN AANENSON: It was on one of my very early missions that I first knew I had, I’d killed men. We caught a group of Germans that were on a road in an area where there were no trees, and so there was no place for them to, to run and hide. And we caught them before they could really get off the roads and run towards the ditches. And I remember the impact it had on me when I could see my bullets just tearing into them, and, and, uh, we had so much firepower that the bodies would fly, uh, some yards, and, uh, as I, as I was doing this I was doing it knowing I had to do it. That it was my job. This is what I’d been trained to do, and I dealt with it fine. But when I got back home to the base in Normandy and landed I got sick. I had to think about what I had done. Now that didn’t change my resolve for the next day. I went out and did it again. And again and again and again.