"The civilized soldier when shot recognizes that he is wounded and knows that the sooner he is attended to the sooner he will recover. He lies down on his stretcher and is taken off the field to his ambulance, where he is dressed or bandaged. Your fanatical barbarian, similarly wounded, continues to rush on, spear or sword in hand; and before you have the time to represent to him that his conduct is in flagrant violation of the understanding relative to the proper course for the wounded man to follow—he may have cut off your head." --Sir John Ardagh, discussing the necessity of "dum dums" (or expanding bullets) for international warfare, at the Hague Convention of 1899, which subsequently banned their use for international conflicts. Via Wikipedia.