Order of battle of the Waterloo Campaign the battles themselves (units spread across the area or on garrison duty). The casualty numbers include all the casualties suffered by each regiment over the three days of fighting during the campaign from 16 June 1815 to dawn on 19 June 1815. Present at the Battle of Waterloo Wellington had 71,257 soldiers available, 3,866 officers and 65,919 other ranks. By the end of the day's fighting the army had suffered 16,084 casualties (3,024 killed, 10,222 wounded and 2,838 missing) a loss of 24.6%. I Corps fielded 24,844 (1,233 officers and 23,383 other ranks) on 18 June 1815 taking into account
Battle of Waterloo Zieten obeyed and marched to Bülow's aid. Müffling saw this movement away and persuaded Zieten to support Wellington's left flank. Müffling warned Zieten that "The battle is lost if the corps does not keep on the move and immediately support the English army". Zieten resumed his march to support Wellington directly, and the arrival of his troops allowed Wellington to reinforce his crumbling centre by moving cavalry from his left. The French were expecting Grouchy to march to their support from Wavre, and when Zieten's I Corps appeared at Waterloo instead of Grouchy, "the shock of disillusionment shattered French morale"