Dr Tim Gale was awarded his PhD by the Department of War Studies, King's College London for his work on French tank development and operations in the First World War and he is now one of the leading experts on this aspect of armoured warfare. He has contributed chapters on the subject to several academic books and he has made a special study of the career of the French First World War general Charles Mangin. His book The French Army's Tank Force and the Development of Armoured Warfare in the Great War was published in 2013.