Our men can't make this change from normal civilians into warriors and remain the same people ... the abnormal world they have been plunged into, the new philosophies they have had to assume or perish inwardly, the horrors and delights ... they are bound to be different people from those you sent away. They are rougher than when you knew them. Killing is a rough business. —Ernie Pyle, 1900 - 1945