Of whatever class or nation, however, all successful participants in the repetitive and unrelenting stress of aerial fighting came eventually to display its characteristic physiognomy: skeletal hands, sharpened noses, tight-drawn cheek bones, the bared teeth of a rictus smile and the fixed, narrowed gaze of men in a state of controlled fear.
The First World War (ed. Knopf, 1999) - ISBN: 9780375400520