A series of bloody battles allowed the Allies to break the German lines. During 100 memorable days, the Canadians showed their valour. They began with a stunning victory at Amiens on August 8, later described by General Ludendorff as “the black day of the German army,” continuing as far as Mons, a Belgian city that was liberated on the last day of the war. Among the most impressive battles fought by the Canadian Corps — but also among the costliest in terms of casualties — were those of Arras (August 26 — September 3), Canal-du-Nord (September 27 — October 1), and Cambrai (October 18). 13,600 Canadians were killed or wounded as they took the canal and beyond it, the town, whose bridges had all been destroyed by the Germans.