Yes, I know it was actually an Anglo-Dutch army ably supported by some of the Prussian army that fought on the battlefield and I also know that many of Wellingtons men were Hanoverians, Nassauers and Brunswickers.
I am also aware of the lead-up battles at Quatre Bras and Ligny and also the other battle of the day at Wavre where more of the Prussians fought against the 'missing' French under Grouchy. I also know of the approaching Austrians and Russians whose presence might have helped had things hung on a bit longer.
Being a Scot I am quite happy to admit that the great British victory was actually an Allied affair and am quite able to read between the lines of the victors histories to see the real story.
This lead me to my recent read.
1815 The Waterloo Campaign The German Victory Peter Hofschroer
I won't provide any 'spoilers' to prospective readers other than to say that there was a bit more to the story in combat terms from the day after Waterloo (or the Battle of la Belle Alliance) including the 'fortress battles' and the 'capture of Paris'.
A bargain from Amazon at £12.30 including postage, well worth reading no matter where your allegiances lie.