Question: When did the British Army defeat Napoleon at Waterloo?
About the article "Napoleonic Wars", section "War between Britain and France, 1803–1814".

Candidate passages:
The famous defeat of the real life Napoleon took place in a region called Waterloo which is in Belgium.
Also, the army that bested him there was British.
The real life Napoleon also invaded Russia.
But contrary to the cartoon, he won that battle. 
Napoleon masked Wellington and massed against the Prussian army, and then after the Battle of Ligny was won, Napoleon attempted to do the same to the Allied/British army located just to the south of Waterloo.
His subordinate was unable to mask the defeated Prussian army, who reinforced the Waterloo battle in time to defeat Napoleon and end his domination of Europe.
It can be said that the Prussian Army under Blücher used the "maneuver de derrière" against Napoleon who was suddenly placed in a position of reacting to a new enemy threat.
Napoleon's practical strategic triumphs, repeatedly leading smaller forces to defeat larger ones, inspired a whole new field of study into military strategy.
In particular, his opponents were keen to develop a body of knowledge in this area to allow them to counteract a masterful individual with a highly competent group of officers, a General Staff.
The two most significant students of his work were Carl von Clausewitz, a Prussian with a background in philosophy, and Antoine-Henri Jomini, who had been one of Napoleon's staff officers.
One notable exception to Napoleon's "strategy of annihilation" and a precursor to trench warfare were the Lines of Torres Vedras during the Peninsular campaign.
French Armies lived off the land and when they were confronted by a line of fortifications which they could not out flank, they were unable to continue the advance and were forced to retreat once they had consumed all the provisions of the region in front of the lines.
The Peninsular campaign was notable for the development of another method of warfare which went largely unnoticed at the time, but would become far more common in the 20th century.
That was the aid and encouragement the British gave to the Spanish to harass the French behind their lines which led them to squander most of the assets of their Iberian army in protecting the army's line of communications.
This was a very cost effective move for the British, because it cost far less to aid Spanish insurgents than it did to equip and pay regular British army units to engage the same number of French troops.
As the British army could be correspondingly smaller it was able to supply its troops by sea and land without having to live off the land as was the norm at the time.
Further, because they did not have to forage they did not antagonise the locals and so did not have to garrison their lines of communications to the same extent as the French did.
So the strategy of aiding their Spanish civilian allies in their guerrilla or 'small war' benefited the British in many ways, not all of which were immediately obvious. 
Baron François-Xavier Donzelot (7 January 1764, Mamirolle – 11 June 1843) was a French general and a Governor of the Ionian Islands and Martinique.
He was the son of François Donzelot and Jeanne–Baptiste Maire and had a brother named Joseph.
He became a general of the French army in March 1801.
Months later, he signed the surrender of Egypt to British forces.
He then returned to France where he served in various high-echelon positions in Napoleon's army.
Subsequently, he was appointed to serve as the head of the French garrison in Corfu and the Ionian Islands from 1807 to 1814.
As governor, he resided in Corfu, where his gentle demeanour and mild manners made him popular with the Corfiotes.
In 1808, he was named Baron of the Empire.
In 1815, he was a divisional commander of Napoleon's forces at the Battle of Waterloo, during the 100-day return of Napoleon.
After the defeat at Waterloo, he lost his position and did not work until 1817 when he was appointed governor of Martinique. 
From France the 2/59th had sailed to Ireland.
When Napoleon returned to France, triggering the "Hundred Days", the battalion was part of the British force dispatched to Belgium.
While they were present in the Waterloo area, they did not take part in the hostilities.
Having formed part of the army of occupation in France, the 2nd Battalion returned to England in 1816, where they were disbanded. 
The Battle of Ligny (16 June 1815) was the last victory of the military career of Napoleon I.
In this battle, French troops of the Armée du Nord under Napoleon's command, defeated a Prussian army under Field Marshal Blücher, near Ligny in present-day Belgium.
The bulk of the Prussian army survived, however, and went on to play a pivotal role two days later at the Battle of Waterloo.
In contrast to Blücher's forces, the left wing of Napoleon's army did not join the decisive engagement.
The battle of Ligny is a prime example of a tactical win and a strategic loss.
However, had the left wing of Napoleon's army succeeded in keeping the Prussian army from joining the British Army under Wellington at Waterloo, as the Emperor had planned, Napoleon might have won the Waterloo Campaign.