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The Battle of Waterloo, 1815: the end of an empire

Napoleonic · 18 June 1815 · France vs the Seventh Coalition · ~7 min read · Updated October 2026

Next anniversary: 18 June 2027, the 212th anniversary 18 June in history ›

Lady Butler's painting Scotland Forever! of the Royal Scots Greys charging head on at Waterloo

Elizabeth Thompson, 1881, via Wikimedia Commons, public domain.

At a glance

Coalition (Britain, Prussia)Duke of Wellington, Gebhard von Blücher
vs
Date
18 June 1815
Location
Waterloo, Belgium
Period
Napoleonic
War
Waterloo campaign
Outcome
Coalition victory
By the numbers
SideStrengthCasualtiesKilled
Coalition (Britain, Prussia)~113,000-118,000~22,000-24,000~4,700
French Empire~72,000-73,000~26,000unknown

Rounded historical estimates. French losses were about 24,000 to 26,000 killed and wounded, including 6,000 to 7,000 captured wounded, with about 8,000 prisoners in all; no reliable count separates the French dead. Some 15,000 more French soldiers deserted after the battle. The National Army Museum's figure of nearly 40,000 French losses counts the killed, wounded and captured together. Unknown: the sources give no reliable figure.

Balance of forces

Coalition (Britain, Prussia)~113,000-118,000
French Empire~72,000

Approximate strength; estimates vary.

Quick answer

Who won the Battle of Waterloo?

An allied army under Wellington and a Prussian army under Blücher won the Battle of Waterloo on 18 June 1815, ending Napoleon's return to power in the fields south of Brussels. By nightfall the emperor was finished for good, and the map of Europe was set for a generation.1

For twenty-three years the wars that carried Napoleon's name had rolled across Europe. On a single Sunday in the fields near Waterloo, they ended. Waterloo was not the largest battle of the age, nor the most elegant, but it was the most final: by nightfall an emperor was finished and a continent's map was set for a generation.2

The battle from both sides

Two perspectives

Wellington's Anglo-allied army held a ridge at Mont-Saint-Jean with one aim: to withstand Napoleon's attacks long enough for the Prussians under Blücher to arrive. Through the day the line absorbed massed infantry assaults, the storm around La Haye Sainte and Hougoumont, and the great French cavalry charges, forming squares that the horsemen could not break. As the Prussians pressed onto the French right flank, Napoleon gambled his elite Imperial Guard on a final assault; when it was thrown back, the French army broke. The victory ended Napoleon's Hundred Days and his career, and opened a European peace that held for decades.

Dark locator map with a gold star in a glowing circle marking the approximate site of the Battle of Waterloo, the coasts, rivers and lakes of the region, and a small world map inset with the area boxed
The Battle of Waterloo: the star marks the approximate site, and the inset shows the area on a world map. Drawn for this article from Natural Earth data, with no modern borders. Location map: © Echoes of Battle (data: Natural Earth, public domain)

Napoleon, back in power for the Hundred Days, had to destroy Wellington's army before the Prussians could join it. He attacked the ridge head-on, hoping to shatter the allied center in an afternoon. His troops stormed La Haye Sainte and fought all day for the orchards of Hougoumont at heavy cost, and Ney's cavalry swept the plateau, but the allied squares held and the assaults were uncoordinated. Blücher's Prussians, whom Napoleon believed beaten at Ligny, arrived on his flank and drained his reserves. His last throw, the Imperial Guard, was repulsed, and his army dissolved in rout. Waterloo ended the Empire and sent Napoleon to final exile on Saint Helena.

The Hundred Days

Beaten at Leipzig in 1813 and exiled to the island of Elba in 1814, Napoleon slipped his guard, landed in France in March 1815, and marched on Paris gathering soldiers as he went. Within weeks he ruled again. The powers that had beaten him, Britain, Prussia, Austria and Russia, declared him an outlaw and began massing armies. Napoleon knew he could not fight them all at once, so he struck first into Belgium, hoping to smash the British and Prussian forces there before the others arrived.3

Painting of Napoleon in a gray coat greeted by cheering soldiers waving a tricolor flag
Soldiers sent to stop Napoleon go over to him on his march from Elba in March 1815, painted by Charles de Steuben in 1818. Public domain

The ridge at Mont-Saint-Jean

The Duke of Wellington chose his ground carefully: a low ridge near the village of Waterloo, where he could hide troops on the reverse slope and anchor his line on fortified farmhouses. Overnight rain turned the fields to mud, and Napoleon delayed his attack for hours to let the ground dry, hours that would cost him dearly. Wellington had a promise to lean on. The Prussian commander Gebhard von Blücher, beaten two days earlier at Ligny, had sworn to march to his aid.4 › Battle of Ligny, 1815

Wellington, legend has it, wished for only two things that afternoon: night, or the Prussians.

Squares against cavalry

The French threw themselves at the ridge all day. The fortified farms of Hougoumont and La Haye Sainte became meat-grinders that swallowed thousands. In the afternoon Marshal Ney launched wave after wave of cavalry against Wellington's infantry, who formed hollow squares, a wall of bayonets on every side that horses will not charge. The squares held, bleeding but unbroken, as the horsemen broke around them like surf on rock.5

Painting of armored French cavalry charging into squares of British infantry in red coats amid smoke
French cuirassiers charge the British squares in the afternoon, painted by Félix Philippoteaux in 1874. Public domain

Blücher keeps his word

Through the afternoon, dark columns appeared out of the woods to the east: the Prussians, arriving as promised. They fell on Napoleon's right flank at the village of Plancenoit, forcing him to peel off troops he could not spare. Marshal Emmanuel de Grouchy, detached with about 33,000 men to pursue the Prussians, was held up at Wavre by their rear guard and never reached the battlefield. The battle Napoleon needed to win quickly was now a battle of two armies against one, and the clock had run out.6

The Guard turns back

As a last throw, Napoleon sent forward his Imperial Guard, the elite veterans of his army. They climbed the ridge into concentrated musket and cannon fire and, for the first time, recoiled. When the cry went up that “La Garde recule,” the Guard is falling back, the French army lost its nerve and collapsed into rout. Wellington waved his hat and the whole line advanced.7

Battle map of Waterloo with French units in blue, allied units in red and Prussian corps in gray
Map of the battle of 18 June 1815: Wellington's line on the ridge at Mont-Saint-Jean, the French attacks on Hougoumont and the center, and the Prussian corps arriving from the east toward Plancenoit. Public domain. Gsl, English Wikipedia, via Wikimedia Commons.

The map that followed

Some 50,000 men were killed or wounded on that small stretch of ground, and thousands more were taken prisoner. The next day in Brussels, according to the diarist Thomas Creevey, Wellington called the battle “a damned nice thing - the nearest run thing you ever saw in your life.” Napoleon abdicated for the last time and was shipped to Saint Helena, a rock in the South Atlantic, where he died in 1821. The victors redrew Europe at the Congress of Vienna and built an order that held off general war for decades. “Waterloo” entered the English language as the word for the defeat you do not come back from.8

Frequently asked questions

Why is the Battle of Waterloo remembered as the most final battle of its age?

The Battle of Waterloo in 1815 ended twenty-three years of wars fought in Napoleon's name in a single day, finishing the emperor and setting Europe's map for a generation. It was not the largest or most elegant battle of the age, but it was the most final.

How did Wellington's infantry stop the French cavalry at Waterloo?

At Waterloo in 1815 Wellington's infantry formed hollow squares, walls of bayonets on every side that horses will not charge, and the squares held while Marshal Ney's cavalry broke around them like surf on rock.

Why did the arrival of the Prussians matter so much at Waterloo?

At Waterloo in 1815 Blücher's Prussians, beaten at Ligny two days earlier, marched to Wellington's aid and struck Napoleon's right flank at Plancenoit, turning the fight into two armies against one and leaving Napoleon no time to win.

Why did Napoleon delay his attack at Waterloo, and what did it cost him?

At Waterloo in 1815 overnight rain had turned the fields to mud, so Napoleon waited hours for the ground to dry before attacking, a delay that gave the Prussians time to reach the battlefield and cost him dearly.

What were the strategic consequences of Waterloo?

After Waterloo in 1815 Napoleon abdicated for the last time and was exiled to Saint Helena, where he died in 1821, while the victors redrew Europe at the Congress of Vienna and built an order that held off general war for decades.

Who won the Battle of Waterloo?

The Battle of Waterloo in 1815 was won by the Seventh Coalition, the British-led army under the Duke of Wellington together with Blücher's Prussians. Napoleon and his French army were defeated, and the emperor abdicated for the last time soon after.

How many people died at the Battle of Waterloo?

No exact death toll is known. At the Battle of Waterloo in 1815 some 50,000 men of the three armies were killed or wounded on that small stretch of ground south of Brussels: about 24,000 on the Coalition side, some 4,700 of them killed, and about 26,000 French. Around 15,000 more French soldiers deserted in the days after. All these figures are approximate.

Notes

A number in the text points to a note; each note names the works that paragraph draws on, listed in full under Sources.

  1. National Army Museum, “Battle of Waterloo”. ↩
  2. Encyclopaedia Britannica, “Battle of Waterloo”; National Army Museum, “Battle of Waterloo”. ↩
  3. Encyclopaedia Britannica, “Battle of Waterloo”. ↩
  4. National Army Museum, “Battle of Waterloo”; Encyclopaedia Britannica, “Battle of Waterloo”; Andrew Roberts, Waterloo. ↩
  5. National Army Museum, “Battle of Waterloo”. ↩
  6. Encyclopaedia Britannica, “Battle of Waterloo”; National Army Museum, “Battle of Waterloo”; Encyclopaedia Britannica, “Battle of Waterloo”. ↩
  7. National Army Museum, “Battle of Waterloo”; Andrew Roberts, “Why We'd Be Better Off if Napoleon Never Lost at Waterloo”; Encyclopaedia Britannica, “Battle of Waterloo”; dzieje.pl, “209 lat po bitwie pod Waterloo Napoleon wciąż fascynuje”; Alessandro Barbero, The Battle. ↩
  8. Encyclopaedia Britannica, “Battle of Waterloo”; Andrew Roberts, “Why We'd Be Better Off if Napoleon Never Lost at Waterloo”; Thomas Creevey, The Creevey Papers; Fondation Napoléon, “close”; dzieje.pl, “209 lat po bitwie pod Waterloo Napoleon wciąż fascynuje”; National Army Museum, “Battle of Waterloo”. ↩

Sources

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Stand on the ridge yourself

Waterloo is one of 40 battles in Echoes of Battle, told scene by scene, with a real-time tactical mode in the works, and set on the ground where Napoleon made his last stand.