The Battle of Waterloo was fought on Sunday 18 June 1815 near Waterloo

Waterloo, Belgium

Waterloo is a Walloon municipality located in the province of Walloon Brabant, Belgium. On December 31, 2009, Waterloo had a total population of 29,573. The total area is 21.03 km² which gives a population density of 1,407 inhabitants per km²...

 in present-day Belgium

Belgium

Belgium , officially the Kingdom of Belgium, is a federal state in Western Europe. It is a founding member of the European Union and hosts the EU's headquarters, and those of several other major international organisations such as NATO.Belgium is also a member of, or affiliated to, many...

, then part of the United Kingdom of the Netherlands

United Kingdom of the Netherlands

United Kingdom of the Netherlands is the unofficial name used to refer to Kingdom of the Netherlands during the period after it was first created from part of the First French Empire and before the new kingdom of Belgium split out in 1830...

. An Imperial French

First French Empire

The First French Empire , also known as the Greater French Empire or Napoleonic Empire, was the empire of Napoleon I of France...

 army under the command of Emperor

Emperor of the French

The Emperor of the French was the title used by the Bonaparte Dynasty starting when Napoleon Bonaparte was given the title Emperor on 18 May 1804 by the French Senate and was crowned emperor of the French on 02 December 1804 at the cathedral of Notre Dame de Paris, in Paris with the Crown of...

 Napoleon

Napoleon I

Napoleon Bonaparte was a French military and political leader during the latter stages of the French Revolution.As Napoleon I, he was Emperor of the French from 1804 to 1815...

 was defeated by combined armies of the Seventh Coalition, an Anglo-Allied army under the command of the Duke of Wellington

Arthur Wellesley, 1st Duke of Wellington

Field Marshal Arthur Wellesley, 1st Duke of Wellington, KG, GCB, GCH, PC, FRS , was an Irish-born British soldier and statesman, and one of the leading military and political figures of the 19th century...

 combined with a Prussia

Prussia

Prussia was a German kingdom and historic state originating out of the Duchy of Prussia and the Margraviate of Brandenburg. For centuries, the House of Hohenzollern ruled Prussia, successfully expanding its size by way of an unusually well-organized and effective army. Prussia shaped the history...

n army under the command of Gebhard von Blücher

Gebhard Leberecht von Blücher

Gebhard Leberecht von Blücher, Fürst von Wahlstatt , Graf , later elevated to Fürst von Wahlstatt, was a Prussian Generalfeldmarschall who led his army against Napoleon I at the Battle of the Nations at Leipzig in 1813 and at the Battle of Waterloo in 1815 with the Duke of Wellington.He is...

. It was the culminating battle of the Waterloo Campaign and Napoleon's last. The defeat at Waterloo put an end to Napoleon's rule as Emperor of the French and marked the end of his Hundred Days

Hundred Days

The Hundred Days, sometimes known as the Hundred Days of Napoleon or Napoleon's Hundred Days for specificity, marked the period between Emperor Napoleon I of France's return from exile on Elba to Paris on 20 March 1815 and the second restoration of King Louis XVIII on 8 July 1815...

 return from exile.

Upon Napoleon's return to power in 1815, many states that had opposed him formed the Seventh Coalition and began to mobilise armies.