War films generally have plots. This is not surprising, of course, as moviegoers tend to want to see a story unfold at the cinema. But these narratives can actually make it harder capture the senselessness of war. Even movies committed to showing the brutality and cruelty of combat, like “Full Metal Jacket” or “1917,” tend to structure the brutality and cruelty around missions or goals which inevitably rationalize the action. Soldiers, in these films, are going somewhere; they have something to do — whether that “something” is taking out a sniper (as in “Full Metal Jacket”) or preventing a doomed...