Napoleon suffered a decisive defeat at the Battle of Waterloo on June 18, 1815.
The Battle of Waterloo was fought on June 18, 1815, near the town of Waterloo in present-day Belgium. The battle was the final confrontation of the Napoleonic Wars and pitted the French army, commanded by Emperor Napoleon Bonaparte, against an alliance of British, Dutch, Belgian, and German forces led by the Duke of Wellington. The battle was a decisive victory for the allied forces, and it marked the end of Napoleon's reign as Emperor of France. Following the battle, Napoleon was exiled to the island of Saint Helena in the South Atlantic, where he remained until his death in 1821. The Battle of Waterloo is considered one of the most significant battles in European history and has been the subject of numerous books, films, and other works of art.