David Ian Hall, who has a DPhil in modern history from the University of Oxford, is a Fellow of the Royal Historical Society and a Senior Lecturer in the Defence Studies Department, King’s College, London at the Joint Services Command and Staff College. A specialist in nineteenth and twentieth century German history, his published works include First and Second World War topics; Strategy for Victory: The Development of British tactical Air Power, 1919-1943 (Praeger, 2008) was selected for the Chief of the Air Staff’s Reading List. He leads cultural-political staff rides for the UK armed forces and NATO. He lives in Oxfordshire.