Waterloo, Belgium Waterloo, Belgium Waterloo (, , ) is a Walloon municipality in the province of Walloon Brabant, Belgium, which in 2011 had a population of 29,706 and an area of . It is north of Braine-l'Alleud, which is the site of the Battle of Waterloo, where the resurgent Napoleon was defeated for the final time in 1815. Waterloo is a Francophone town. The placename has Brabantian Dutch origins. The first element is most likely "water", but it should be understood locally as "wet". The second element is "lo(o)", an ancient word for "forest" or "clearing in a forest", coming either from
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"