I joined the department of War Studies in September 2001 as a lecturer in military history, becoming Professor of the History of Warfare in 2011. I was previously a member of the Department in 1991–2, when I was a research fellow working for a collaborative research project investigating British civil–military relations, 'Government and the Armed forces in Britain, 1856-1990'. Before returning to the department I held teaching appointments in European and international history at the University of North London, Bradford University, and London Guildhall University. I have been Secretary General of the British Commission for Military History, 2009–14 and served on the Council of the Army Records Society from 1998–2009, holding the office of Honorary Secretary, 2000–2005. I was a member and chair of the University of London’s Military Education Committee, 2006–12. I was a councilor of the National Army Museum from 2011–2017 and remain a co-opted member of its Collections Committee and Research and Collections Advisory Panel.