The Battle of Waterloo played a pivotal role in the life of Napoleon Bonaparte, marking the end of his rule. Fought on June 18, 1815, this decisive battle resulted in his ultimate defeat by a coalition of European forces led by the Duke of Wellington. Following Waterloo, Napoleon was exiled to Saint Helena, where he spent the remainder of his life. This battle not only ended his influence over Europe but also reshaped the continent's political landscape. The defeat at Waterloo symbolizes the decline of his power and the restoration of monarchies across Europe.