THE THIRD BATTLE OF YPRES The Slaughter at Passchendaele By early 1917 the Germans had defeated every allied army opposed to them, except the British. But Field Marshal Haig was undaunted. The BEF would attack again on the Ypres front. WOOD, TOM. Gunner, Royal Field Artillery (795226), 23 yrs, son Mr. K. Wood, Ling Park,