Command and Morale: The British Army on the Western Front 1914-18 (Barnsley: Praetorian Press, 2014).
Changing War (London: Continuum, 2013). Co-editor with Peter W. Gray.
The Chief: Douglas Haig and the British Army (London: Aurum, 2011).
War Studies Reader (London: Continuum, 2010; hardback and paperback). Editor and author of introduction.
Douglas Haig: War Diaries and Letters 1914-18 (London: Weidenfeld & Nicolson, 2005; paperback edition, 2006). Co-editor with John Bourne.
Command and Control on the Western Front: The British Army’s Experience 1914-18 (Staplehurst: Spellmount, 2004). Co-editor with Dan Todman and contributor.
The Somme (London: Cassell, 2003; paperback edition, 2004).
Forgotten Victory: The First World War – Myths and Realities (London: Hodder Headline, 2001; paperback edition, 2002).
Leadership in the Trenches: Officer-Man Relations, Morale and Discipline in The British Army in the Era of the First World War (Basingstoke: Macmillan, 2000).
The Challenges of High Command: The British Experience (Basingstoke: Palgrave, 2003). Co-editor with Geoffrey Till and contributor.
Leadership and Command: The Anglo-American Military Experience Since 1861 (London: Brassey’s, 1996; new edition, 2002). Editor and contributor.
The Redcaps: A History of the Royal Military Police and its Antecedents from the Middle Ages to the Gulf War (London: Brassey’s, 1994).
From Vimy Ridge to the Rhine: The War Letters of Christopher Stone DSO MC 1914-19 (Ramsbury: Crowood, 1989). Co-editor with G.I.S. Inglis.
Warfare in the Twentieth Century: Theory and Practice (London: Unwin-Hyman, 1988). Co-editor with Colin McInnes, and contributor.
Articles and book chapters
‘Strategic Command’, in Jay Winter (ed.), The Cambridge History of the First World War (Cambridge: Cambridge University Press, 2013). Co-author with Stephen Badsey.
‘I Corps Commander: Douglas Haig’, in Spencer Jones (ed.), Command and Leadership in the BEF 1914 (Solihull: Helion, 2013).
‘Chaplains in Context: Padres and the ‘Bureaucracy of Paternalism’ in the First World War’, in Michael Snape and Edward Madigan (eds.), Clergy in Khaki: British Army Chaplains in the First World War (Farnham: Ashgate, 2012).
‘Finest Hour? British Forces on the Western Front in 1918: an overview’, in Ashley Ekins (ed.), 1918 Year of Victory: the end of the Great War and the Shaping of History (Wollombi, N.S.W.: Exisle Publishing, 2010).
‘Waging Total War: Learning Curve or Bleeding Curve?’ [transcript of a debate with Holger Afflerbach and Jay Winter], in Jay Winter (ed.), The Legacy of the Great War – Ninety Years On (Columbia, Missouri: University of Missouri Press, 2009).
‘Military Past, Military Present, Military Future: The Usefulness of Military History’, Journal of the Royal United Services Institute, June 2008 [version of my Inaugural Lecture].
‘Military Revisionism: The case of the British Army on the Western Front’ (Introduction), in Sir Michael Howard, A Part of History: Aspects of the British Experience of the First World War (London: Continuum, 2008).
‘Haig and the British Expeditionary Force in 1917’, in P. Dennis and J. Grey (eds.), 1917: Tactics, Training and Technology (Canberra: Australian Military History Publications, 2007).
‘Vimy Ridge and the Battle of Arras: A British Perspective’, in Geoffrey Hayes, Andrew Iarocci and Mike Bechthold (eds), Vimy Ridge: A Canadian Reassessment (Waterloo, Ont: Wilfrid Laurier University Press, 2007).
‘Britain and the Empire at War, 1914-1918: Reflections on a Forgotten Victory’, in John Crawford and Ian McGibbon (eds), New Zealand’s Great War: New Zealand, the Allies and the First World War (Auckland: Exisle Publishing, 2007).
‘Dead cows and Tigers: some aspects of the experience of the British soldier in Normandy, 1944’, in John Buckley (ed.), The Normandy Campaign Sixty Years On (London: Routledge, 2006).
‘The Royal Navy did not win the ‘Battle of Britain’: But we need a holistic view of Britain’s defences in 1940’ (co-author with Andrew Gordon and Christina Goulter), Journal of the Royal United Services Institute, December 2006
‘Operation Sealion and the Battle of Britain: A Land Perspective’. In the on-line edition of the Journal of the Royal United Services Institute, December 2006.
‘Hubert Gough’ (co-author with Helen McCartney), in Ian F.W. Beckett and Steven Corvi (eds), Haig’s Generals (Barnsley: Pen & Sword, 2006).
‘Not the Same as Friendship: The British Empire and Coalition Warfare in the Era of the First World War’, in Jeffrey Grey and Peter Dennis (eds), Entangling Alliances: Coalition Warfare in the Twentieth Century (Canberra: Australian Military History Publications, 2005).
‘Restructuring the Infantry’, Journal of the Royal United Services Institute, February 2005
‘John Terraine as a Military Historian’, Journal of the Royal United Services Institute, April 2004.
‘The Challenges of High Command in the Twentieth Century’ and ‘British High Command in the First World War: An Overview’, both in Gary Sheffield and Geoffrey Till (eds), The Challenges of High Command: The British Experience (Basingstoke: Palgrave, 2003).
‘The British Army and Air Power’ (co-author with David Jordan), in Peter W. Gray (ed.), British Air Power (London: The Stationary Office, 2003).
‘The Australians at Pozières: Command and Control on the Somme, 1916’, in David French and Brian Holden Reid (eds), The British General Staff: Innovation and Reform (London: Cass, 2002).
‘Douglas Haig and Airpower’ (co-author with David Jordan), in Peter W. Gray and Sebastian Cox (eds), Airpower Leadership Theory and Practice (London: The Stationary Office, 2002).
‘The Morale of the British Army on the Western Front, 1914-18: A Case Study in the Importance of the “Human Factor” in Twentieth-Century Total War’, in Geoffrey Jensen and Andrew Wiest (eds), War in the Age of Technology (New York: New York University Press, 2001).
‘How Even Was the Learning Curve? Reflections on the British and Dominion Armies on the Western Front, 1916-1918’, in Canadian Military History since the 17th Century: Proceedings of the Canadian Military History Conference, Ottawa, 5-9 May 2000 (Ottawa: 2001).
‘Reflections on the Experience of British Generalship’, in John Bourne, Peter Liddle and Ian Whitehead (eds), The Great World War 1914-45 Vol. I (London: HarperCollins, 2000).
‘A very good type of Londoner and a very good type of colonial: Officer-Man Relations, and Discipline in the 22nd Royal Fusiliers, 1914-18’, in Brian Bond et al, ‘Look to your Front’: Studies in the First World War (Staplehurst: Spellmount, 1999).
‘The Indispensable Factor: British Troops in 1918’, in Jeffrey Grey and Peter Dennis (eds), 1918: Defining Victory (Canberra, Department of Defence, 1999).
‘Douglas Haig, the Common Soldier and the British Legion’ (co-authored with Niall Barr), in Brian Bond and Nigel Cave (eds), Haig: A Reappraisal 70 Years On (London: Pen & Sword, 1999).
‘The British Army in the Hundred Days’, Journal of the Royal United Services Institute, December 1998.
‘The Shot at Dawn Issue: An Historian’s View’, Journal of the Royal United Services Institute, February 1998.
‘The Shadow of the Somme: The Influence of the First World War on British Soldiers’ Perceptions and Behaviour in the Second World War’, in Paul Addison and Angus Calder (eds), Time to Kill: the Soldier’s Experience of War in the West 1939-1945 (London: Pimlico, 1997).
‘Command, Leadership, and the Anglo-American Experience’, in G.D. Sheffield (ed.), Leadership and Command: The Anglo-American Military Experience Since 1861 (London: Brassey’s, 1997).
‘Oh! What a Futile War: Perceptions of the First World War in Modern British Media and Culture’, in Susan L. Carruthers and Ian Stewart (eds), War, Culture and the Media (Trowbridge: Flicks Books, 1996).
‘Officer-Man Relations, Discipline and Morale in the British Army of the First World War’, in Hugh Cecil and Peter Liddle (eds), Facing Armageddon – 1914-18: the War Experienced (Barnsley: Pen and Sword, 1996).
‘The Anglo-American Alliance of 1941-45 Revisited’, The Journal of Mississippi History, Vol. LVII, (1996).
‘The Operational Role of British Military Police on the Western Front’, in Paddy Griffith (ed.) British Fighting Methods in the First World War (London: Cass, 1996).
‘Carton de Wiart and Spears’, in John Keegan (ed.), Churchill’s Generals (London: Weidenfeld and Nicolson, 1991).
‘The Effect of the Great War on Class Relations in Britain: The Career of Major Christopher Stone DSO MC’, War and Society, Vol.7 (1989).