The battle was fought over a large front from Havrincourt in the north to east of Emelry in the south.

Battle of Cambrai (1917)

The Battle of Cambrai (20 November – 7 December 1917) was a British campaign of the First World War. Cambrai, in the Nord département (Nord-Pas-de-Calais), was a key supply point for the German Siegfried Stellung (part of the Hindenburg Line) and the nearby Bourlon Ridge would be an excellent gain from which to threaten the rear of the German line to the north. The operation was to include an experimental artillery action. Major General Tudor, Commander Royal Artillery (CRA) of the 9th Division, suggested trying out new artillery-infantry techniques on his sector of the front. During preparations, J. F. C. Fuller, a staff officer with the Royal Tank Corps (RTC), was in the process of looking for a place to use tanks as raiding parties. General Julian Byng, commander of the British Third Army, decided to incorporate them into the attack.

• http://en.wikipedia.org/wiki/Battle of Cambrai (1917)
• Spilling, M., 2010, Battles that Changed History: Key Battles that Decided the Fate of Nations: Amber Books, London, 448p