“In the end, a soldier kills because all the circumstances of a moment drive him to it. It isn’t for freedom or God or for the people back home. It’s because he has no choice but to kill. And in that moment, he’s not thinking of it as a good thing or a bad thing. He’s not thinking about ethics. He’s thinking about keeping himself alive and keeping his comrades alive. And in all that mess, the only thing he wants is for it to end and for him to be alive to see that end.”