The Battle of Okinawa is one of the bloodiest and most tragic chapters of the Pacific war, claiming the lives of 110,000 Japanese troops, 140,000 Okinawan civilians and 12,520 American servicemembers. It’s etched in the memory of every survivor. Though their numbers are dwindling — most are in their early 90s — they all have stories to tell, including the moral quandaries they faced.