About John Keegan:
Sir John Desmond Patrick Keegan was a British military historian, lecturer, writer and journalist. He was the author of many published works on the nature of combat between the 14th and 21st centuries concerning land, air, maritime, and intelligence warfare, as well as the psychology of battle.
Well, if they are trying to kill you, on the whole they're the people you have to kill, aren't they?
John Keegan