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
Waterloo Campaign: Ligny through Wavre to Waterloo Wavre (nor'-nor'-west) was about with some larger minor road leading there. After considering his options, Grouchy decided to advance to Wavre and engage whatever Prussians he found there, and so aid Napoleon by preventing those Prussians from moving towards Waterloo. Grouchy arrived at Wavre at around 16:00 and immediately engaged the Prussian III Corps (Thielemann's), which was acting as the rearguard of the Prussian army and which had been about to leave for Waterloo) in what became the Battle of Wavre. The Prussian advance to the Waterloo battlefield was impeded by the swollen streams, which had turned their valleys into