John Keegan — English Historian born on May 15, 1934, died on August 02, 2012
Sir John Desmond Patrick Keegan OBE FRSL 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... (wikipedia)