Robert Jay Lifton
Robert Jay Lifton (born 1926) is an American psychiatrist and author of many books. He gained world fame through his research of the psychological causes and consequences of war, and he paid particular attention to the Holocaust research. He won numerous international scientific awards and wrote a large number of books, including Death in Life: Survivors of Hiroshima (1968), Home from the War: Vietnam Veterans — Neither Victims nor Executioners (1973), and The Nazi Doctors: Medical Killing and the Psychology of Genocide (1986), that deal with psychological adjustments which people are undergoing in extreme war conditions.
Image source: Wikipedia/Mark Bunker