This Memorial bears the names of over 9,000 men who fell in the period from 8 August 1918 to the date of the Armistice in the Advance to Victory in Picardy and Artois, between the Somme and Loos, and who have no known grave. They belonged to the forces of Great Britain and Ireland and South Africa; the Canadian, Australian and New Zealand forces being commemorated on other memorials to the missing. The memorial was designed by J.R. Truelove, with sculpture by Ernest Gillick.