Originally Posted by Robbie

"The War of 1812 (which lasted from 1812 to 1814) was a military conflict between the United States and Great Britain. As a colony of Great Britain, Canada was swept up in the War of 1812 and was invaded a number of times by the Americans."

So maybe there were British troops from their colony of Canada? I would assume that's a pretty good possibility?

War of 1812 - The Canadian Encyclopedia

And this was a 2012 article from the Smithsonian Institute. Not sure why the title of it is what it is...
https://www.smithsonianmag.com/smart...use-127844144/

And this:
"To Americans, the burning of Washington by British troops was a shocking act by barbaric invaders. But the burning was payback for a similar torching by American forces the year before. After defeating British troops at York (today’s Toronto), then the capital of Upper Canada, U.S. soldiers plundered the town and burned its parliament. The British exacted revenge in Aug. 1814 when they burned the White House, Congress, and other buildings."
https://www.smithsonianmag.com/histo...812-102320130/