Both those are before Canada officially existed. The atrocities for which Canada existed include testing gas on soldiers in Sundre, Alberta, imprisoning the Japanese, Germans, and Italians during WWII, and of course, the damned residential schools.cathou said:Well, two things come right away in my mind for Canada, but technically it was the British army that did it
Acadian deportation where the British army cleansed the French from maritime provinces
http://en.wikipedia.org/wiki/Expulsion_of_the_Acadians
And the hand out of contaminated blankets by Amherst to natives, hoping to give them small pox. It's one of the first bacteriological warfare event in history. It wasn't that successful but the intent was there.
http://en.wikipedia.org/wiki/Jeffery_Amherst,_1st_Baron_Amherst