Gary Sheffield is Visiting Professor in the Defence Studies Department of King’s College London and one of Britain’s foremost military historians. He specialises in Britain at war, 1914-45, and is the author of a number of acclaimed histories, including the best-selling 'Forgotten Victory: The First World War – Myths and Realities (2001)' and 'The Chief: Douglas Haig and the British Army (2011)', which was chosen as a military book of the year by The Times and was shortlisted for the Duke of Westminster’s Medal for Military Literature.