Battle of Wavre Battle of Wavre The Battle of Wavre was the final major military action of the Hundred Days campaign and the Napoleonic Wars. It was fought on 18–19 June 1815 between the Prussian rearguard, consisting of the Prussian III Corps under the command of General Johann von Thielmann (whose chief-of-staff was Carl von Clausewitz) and three corps of the French army under the command of Marshal Grouchy. A blocking action, this battle kept 33,000 French soldiers from reaching the Battle of Waterloo and so helped in the defeat of Napoleon at Waterloo. Following defeat at the Battle of Ligny two days
Coalition forces of the Napoleonic Wars as in Germany during the Battle of the Goerhde and the Battle of Leipzig, they were not viewed as being particularly effective. Mostly they effected terror in the enemy troops, who were unfamiliar with this kind of weapon. The French initially thought that the rocket troops were "lancers", as the firing device seemed from a distance to be a lance. At the beginning of the wars the tactics of the allied forces were different from the British tactics. For example, they tried to use the column, but as they almost always lost against the French, they had to develop another