"General Mattis arrived a few minutes later, clearing the atmosphere like a thunderstorm on a humid afternoon. Mattis is kinetic. The troops who knew him from Afghanistan loved him, and everyone else loved him by reputation. Stars on a collar can throw a barrier between leader and led, but Mattis' rank only contributed to his hero status. Here was an officer, a general, who understood the Marines, who, in fact, was one of them. I caught Wynn's eye and leaned toward him to whisper a question: "You know what Mattis's call sign is?" He shook his head. "Chaos. How fucking cool is that?""