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 holding his ground at Quatre Bras, the defeat of the Prussians forced Wellington to withdraw north to Waterloo on the 17th. Napoleon sent a third of his forces to pursue the Prussians, who had in good order. This resulted in the separate and simultaneous Battle of Wavre with the Prussian rear-guard. Upon learning that the Prussian army was able to support him, Wellington decided to offer battle on the Mont-Saint-Jean escarpment, across the Brussels road. Here he withstood repeated attacks by the French throughout the afternoon of the 18th, aided by the progressively arriving Prussians. In the evening Napoleon committed