Hundred Days Campaign and Battle of Waterloo

On February 26, 1815, after less than a year in exile, Napoleon escaped Elba and sailed to the French mainland with a group of more than 1,000 supporters. On March 20, he returned to Paris, where he was welcomed by cheering crowds. The new king, Louis XVIII (1755-1824), fled, and Napoleon began what came to be known as his Hundred Days campaign.

Upon Napoleon’s return to France, a coalition of allies–the Austrians, British, Prussians and Russians–who considered the French emperor an enemy began to prepare for war. Napoleon raised a new army and planned to strike preemptively, defeating the allied forces one by one before they could launch a united attack against him.

In June 1815, his forces invaded Belgium, where British and Prussian troops were stationed. On June 16, Napoleon’s troops defeated the Prussians at the Battle of Ligny. However, two days later, on June 18, at the Battle of Waterloo near Brussels, the French were crushed by the British, with assistance from the Prussians.

On June 22, 1815, Napoleon was once again forced to abdicate.