After their defeat at the Battle of Waterloo on 18 June 1815, the French Army of the North, under the command of Napoleon Bonaparte retreated in disarray back towards France. As agreed by the two Seventh Coalition commanders in chief, the Duke of Wellington, commander of the Anglo-allied army, and Prince Blücher, commander of the Prussian army, the French were to be closely pursued by units of the Prussian cavalry.

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 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.