Of all the Allies that fought Napoleon during this campain, only 15% were British! Of all the casualties that the Allied armies suffered, only 17% were British, 8% were Netherlanders, and 75% were German. Now, that should tell you something.
This is only part of what Peter Hofschroer brings to us in this excellent book. It deverves to be on every Napoleonic enthusiast's bookshelf. That and his comapion book about the battle of Ligny and Quatre Bras.