The Battle of Waterloo, which took place on June 18, 1815, was a significant battle in European history, marking the final defeat of French Emperor Napoleon Bonaparte. The battle was fought between Napoleon's forces and a coalition of British, Prussian, and Dutch-Belgian troops commanded by the Duke of Wellington. It was a long and brutal battle that lasted all day, with both sides suffering heavy losses. The defeat at Waterloo ended Napoleon's reign and paved the way for the restoration of the Bourbon monarchy in France.