In a high school classroom on the South Side of Chicago, Rory Fanning is telling students about the time he and his fellow Army Rangers occupied a school in Afghanistan. “We walked in and said, ‘School’s canceled, we’re going to use this as a military base for the next six weeks.’ There was nothing they could do about it.”

Sometimes, after abducting locals for reasons as thin as not showing enough deference to soldiers, his superiors would place their detainees in separate classrooms and fire a gun somewhere out of sight so that each detainee would think the other had been shot. At that point, says Fanning, “We’d walk into the rooms where each person was and say, ‘Your friend didn’t tell us what we wanted to hear. Do you have anything we want to hear?’ This is how we got information. These are things I watched.”