Map of 8th Division attack at Ypres on the Menin road ridge on 31 July 1917.  3 phase lines and battalion advances shown.
Own work
Usedtoknowthat Based on a map in "The Eighth Division 1914-1918" by Lt.-Col. J H Boraston and Capt. C E O Bax, in between p138-139. Naval &amp; Military press ISBN9871843421894. Originally published 1926. Cropped and simplified by removing ~half German trenches and all trench names.