Cika wannan jumla: A ranar 18 da 19 ga Yuni 1815 da
An yi yakin Wavre a nan a ranar da aka yi yakin Waterloo. Napoleon ya aika da Marshal Grouchy don bin wani ɓangare na sojojin Prussian da ke janyewa a karkashin Janar Johann von Thielmann. Duk da jin karar bindigogi daga Waterloo da ke kusa, Grouchy ya yanke shawarar yin biyayya da umarninsa kuma ya shiga kungiyar Prussian daya a Wavre. A lokacin da yakin Grouchy ya ƙare, Napoleon ya riga ya rasa a Waterloo.