“The switch flipped as soon as we moved out,” says Davis. “I could feel it, but I could also see it: the invisible mechanism locking in, the group synchronizing as we patrolled. The point man looking ahead, every man behind alternating their focus: one left, the next right, with rear security covering our six. Never walking backwards, but stopping, turning, scanning, then quickening the pace to catch up with the group, before doing it again. To look at it from a distance it would seem choreographed.”