Napoleon’s final defeat at Waterloo on 18 June 1815.
Historical background
Napoleon tried to defeat the Anglo-allied and Prussian armies separately before they could combine. On 18 June, Wellington’s army held its position south of Brussels as the Prussians moved towards the battlefield.
The arrival of Blücher’s forces put pressure on Napoleon’s flank. The French army broke, Napoleon abdicated soon afterwards, and the allies sent him into exile on Saint Helena.



