It is only at the end, perhaps, that the two authors diverge on the true lessons of the fight against ISIS, to include the tenuous gains resulting from the application of overwhelming military force. The mantra to “Kill ISIS” perhaps comes at a cost at all levels of war—strategically, operationally, and tactically. Read critically, Pittard and Bryant’s first-hand accounts provide a starting point for wrestling with the true costs of war on humanity and the limits of hunting.