Gregory Fremont-Barnes holds a doctorate in Modern History from the University of Oxford and serves as a Senior Lecturer in the Department of War Studies at the Royal Military Academy, Sandhurst. A prolific author, his books include Waterloo 1815: The British Army's Day of Destiny and many others on military and naval subjects covering the 18th to the 21st centuries. Holding a particular interest in insurgency and counterinsurgency, his wider work for the UK Ministry of Defence on these subjects regularly takes him to Africa, the Middle East and South America. As an academic advisor, Dr Fremont-Barnes has accompanied many groups of British Army officers and senior NCOs in their visits to numerous battlefields of the Peninsular War, the Waterloo campaign, Normandy and the Falklands.

Professor Robert O'Neill, AO D.Phil. (Oxon), Hon D. Litt. (ANU), FASSA, FR Hist S, is the Series Editor of the Essential Histories. His wealth of knowledge and expertise shapes the series content and provides up-to-the-minute research and theory. He is the author of many books including works on the German Army and the Nazi Party, and the Korean and Vietnam wars. He is now based in Australia.

In the mid-19th century India was the focus of Britain's international prestige and commercial power - the most important colony in an empire which extended to every continent on the globe and protected by the seemingly dependable native armies of the East India Company. When, however, in 1857 discontent exploded into open rebellion, Britain was obliged to field its largest army in forty years to defend its 'jewel in the crown'. This book, drawing on the latest sources as well as numerous first-hand accounts, explains why the sepoy armies rose up against the world's leading imperial power, details the major phases of the fighting, including the massacres at Cawnpore and the epic sieges of Delhi and Lucknow, and examines many other aspects of this compelling, at times horrifying, subject.