Battle diaries are essential for understanding what generals are thinking as they work their way through the fog of battle. Nicholas Sarantakes juxtaposes the diaries of two very different generals who both fought at Okinawa: Lt. Gen. Buckner, a by-the-numbers man who favored the use of artillery and tanks to reduce entrenched positions, and Gen. Stilwell, a prickly outsider who preferred maneuver to set-piece battles. Sarantakes identifies individuals, includes explanations of important events alluded to by the generals and provides glossaries of main characters and military terms. The...