Excerpts from Books and Wikipedia
"The coalition invaded France and captured Paris, forcing Napoleon to abdicate in April 1814. He was exiled to the island of Elba, between Corsica and Italy. Meanwhile, in France, the Bourbons were restored to power. However, Napoleon escaped from Elba in February 1815 and took control of France, "without spilling a drop of blood" as he wished. The Allies responded by forming a Seventh Coalition, which ultimately defeated Napoleon at the Battle of Waterloo in June 1815." [Wikipedia]