R. J. Overy is Professor of History at the University of Exeter. He has written numerous books on the Third Reich, the Second World War and air warfare including: "The Air War 1939-1945" (2nd ed., 2006), "Why the Allies Won "(2nd ed., 2006)" "and "The Dictators: Hitler's Germany and Stalin's Russia "(2004)" "which won both the Wolfson and the Hessell Tiltman Prizes for History in 2005.