The battle which ended Napoleon Bonaparte’s rule.
The French suffered 41,000 deaths and casualties.
The British and Prussians against them suffered only 24,000 deaths and casualties, 17,000 for the British and 7,000 for the Prussians.
Bonaparte returned to Paris for emergency powers as absolute ruler. This was denied. He abdicated under threat of removal and handed power to his son. Four days later, his son was deposed and the monarchy restored.
Bonaparte sought to leave France for the United States but he later surrendered to the British, who exiled him to the island of St Helena for the rest of his life.
Commander of the victorious British forces was Arthur Wellesley, 1st Duke of Wellington, an Anglo-Irish soldier and later two times Prime Minister.