20-09: Menin Road - British loss 22.000 men; gain 800 yards
25-09: Polygon Wood - British loss 17.000 men; gain 1.000 yards
12-10: Passchendaele - British loss 13.000 (in 3h); gain 100 yards
Battle of Verdun: 600.000 men (total loss)
Battle of the Somme: 1.000.000 (total loss)