Why did the Battle of Waterloo end Napoleon’s rule permanently?

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The Battle of Waterloo, fought on June 18, 1815, served as the final defeat of Napoleon, effectively ending his rule and the Napoleonic Wars permanently.12

Following his escape from exile on Elba and his return to power during the Hundred Days, Napoleon faced a massive coalition of European powers determined to overthrow him. After his decisive loss at Waterloo against the combined forces of the duke of Wellington and Gebhard Leberecht von BlĂŒcher, Napoleon returned to Paris and abdicated for the second and final time on June 22, 1815.1345

The defeat left Napoleon without a viable military or political path forward. After his surrender to the British, he was sent into permanent exile on the remote island of St. Helena, where he remained until his death. This collapse allowed for the restoration of Louis XVIII to the French throne and brought an end to over two decades of recurrent warfare in Europe.1452