During this time, forming part of the British First Army, the Canadian Corps fought in the Battle of Amiens, Second Battle of the Somme, Battle of the Scarpe, Battle of the Canal du Nord, Battle of Cambrai, Battle of the Selle, Battle of Valenciennes and finally at Mons, on the final day of combat before the Armistice of 11 November 1918. In terms of numbers, during those 96 days the Canadian Corps' four over-strength or "heavy" divisions totalling roughly 100,000 men, engaged and defeated or put to flight elements of 47 German divisions, which represented one quarter of the German forces faced by the Allied Powers fighting on the Western Front. However, their successes came at a heavy cost; Canadians suffered 20% of their battle-sustained casualties of the war during the same period. The Canadian Corps suffered 45,835 casualties during this offensive.