And the brits took way more credit than deserved.
In fact, the OPPOSITE is true.
The British don't get ENOUGH credit nowadays. Most of the wallies who talk about the Battle of Waterloo side with the French and Napoleon and think he was a top bloke who could do no wrong and they ignore the teachings of the most respected historians who say that the British had Waterloo won before the Prussians - who, when they didn't have the British fighting alongside them, were defeated by the French just two days before - turned up, thanks to their constant ability to keep repelling wave after wave of French attacks and standing their ground. Away from left-wing dominated discussion forums (as most are, for some reason) and left-wing media, respected historians who have actually spent many years studying the Battle of Waterloo will say that the British had Waterloo won just as the Prussians belatedly arrived on the field.
These wallies who see Boney as some sort of hero who was only defeated by the evil, baby-eating Brits, who thwarted Napoleon's attempts to impose freedom and democracy and goodwill on the peoples of Europe, thanks to the Prussians are the same wallies who swallow the Blackadder narrative of WWI history hook, line and sinker, and believe that Serbia, or even Britain, was responsible for starting WWI and that Germany was entirely blameless.
The arrival of Blucher and the Prussians on the French right flank finished the matter that day.
That'll be the same Prussians who were defeated by the Frogs just two days before, when they didn't have the British fighting alongside them. On the same day as that Prussian defeat, the British defeated the French in another battle elsewhere.