Daniel Whittingham presents the first full-length study of one of Britain's most important military thinkers, Major-General Sir Charles E. Callwell (1859–1928). It tells the story of his life, which included service in military intelligence, the South African War, and on the General Staff before and during the First World War. It also presents the first comprehensive analysis of his writing: from his well-known books Small Wars (1896) and Military Operations and Maritime Preponderance (1905), to a host of other books and articles that are presented here for the first time. Through a study of Callwell's life and works, this book offers a new perspective on the nature and study of military history, the character of British strategy, and on the army to which he belonged.

'… an excellent read for anyone interested in how the man shaped British military thought.' A. A. Nofi, The NYMAS Review
'Whittingham has produced a well-researched, lucid, and valuable account which will be of interest to a wide variety of readers interested in military affairs and strategic thought more broadly.' David Morgan-Owen, War in History Book Reviews
'Whittingham has produced a book that does full justice to Callwell as a military theorist and, in the process, has made a major contribution to the historiography of the British army.' Ian F. W. Beckett, IJMH review of Whittingham
'… an excellent read for anyone interested in how the man shaped British military thought.' A. A. Nofi, The NYMAS Review

Daniel Whittingham is Lecturer in the History of Warfare and Conflict at the University of Birmingham. He is a Councillor of the Army Records Society and International Secretary of the British Commission for Military History.