Kim A. Wagner teaches global and British imperial history at Queen Mary, University of London. His books include The Skull of Alum Bheg, The Great Fear of 1857, and Thuggee.The Amritsar Massacre of 1919 was a seminal moment in the history of the Indo-British encounter, and it had a profound impact on the colonial relationship between the two countries. In this dramatic telling, which takes the perspectives of ordinary people into account, the event and its aftermath are strikingly detailed. Wagner argues that General Dyer's order to open fire at Jallianwalla Bagh was an act of fear and its consequences for the Indian freedom struggle were profound. Situating the massacre within the 'deep' context of British colonial mentality and the local dynamics of Indian nationalism, Wagner provides a genuinely nuanced approach to the bloody history of the British Empire.