After the Allies entered Paris in March 1814, Napoleon abdicated and was exiled to the island of Elba. He returned to France in March 1815 and rebuilt his army, but he was defeated by Allied forces under the duke of Wellington and Gebhard Leberecht von Blücher at the Battle of Waterloo on June 18, 1815. Only after this defeat and Napoleon’s second abdication did the Napoleonic Wars end.