They knew death was inevitable. The Pacific Theater of World War II saw U.S. soldiers, including my own grandpa, going into battle with Japanese soldiers unafraid to die. The December 1941 attack on Pearl Harbor taught them everything they needed to know. The Battle of Okinawa is often seen as the bloodiest battle in World War II. We've most recently seen this battle in Mel Gibson's Hacksaw Ridge. A new take on the men looking down the barrel of death is explored in Peter Berg's upcoming Netflix film.