You may be joking, but do keep in mind that the Canadians (well, the British, but if memory serves, a significant fraction of the force were from Canada) sacked Washington D.C. in 1814.
Not that it matters, but I am Canadian and we were taught in school Canada was created in 1867 via the BNA (British North American Act).
Therefor, those who "sacked" Washington must be British, the same way that George Washington must British as well be given he was born prior to the formation of the USA. He became "American" later, much as "Canada" was created later..