Ethan Scott plays a drummer boy with the Scottish 49th Regiment.
"It is overwhelming," Scott told CBC News. "It's hard to express the feeling of being around so many soldier re-enactors. It's really amazing. I'm 12. I'm the youngest drummer in my corps. I'm one of the younger people in the whole thing."
Two hundred years ago, a British-led alliance fought Napoleon's French army in a field in what's now Belgium. Napoleon's loss was a pivotal moment in European history.
You can listen to CBC News Network's interview with Scott here, and check out photos of the event taken by his father, Greg Scott.