Alexander Turner is a serving British Army officer in the Irish Guards. His operational experience includes Northern Ireland, Kosovo, the Iraq War of 2003 and service as a United Nations Military Observer. He has a BA in War Studies from King's College, London and is a graduate of the UK Command and Staff College. He is also the author of Campaign 151: Vimy Ridge 1917 and Campaign 187: Cambrai 1917.

Peter Dennis was born in 1950. Inspired by contemporary magazines such as Look and Learn he studied illustration at Liverpool Art College. Peter has since contributed to hundreds of books, predominantly on historical subjects, including many Osprey titles. A keen wargamer and modelmaker, he is based in Nottinghamshire, UK.

At 0310 hours on 7 June 1917, the pre-dawn gloom on the Western Front was shattered by the 'pillars of fire' - the rapid detonation of 19 huge mines, secreted in tunnels under the German lines and containing 450 tonnes of explosives. Admitted by the Germans to be a 'masterstroke', the devastating blasts caused 10,000 soldiers to later be posted simply as 'missing'. Launching a pre-planned attack into the carnage, supported by tanks and a devastating artillery barrage, the British took the strategic objective of Messines Ridge within hours. A rare example of innovation and success in the First World War, this book is a fresh and timely examination of a fascinating campaign.