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BREAKING: "If you want free healthcare, then we'll take theirs!" - Joe Biden in shocking new declaration of war against Canada. US troops have crossed 49th parallel, entered Victoria, Windsor, Niagara
(thumbnails.texastribune.org)
"I only wish I had more space to write this stupid headline" he later added
Fun fact: The White House was painted white after we came down and set fire to it. 1812.
https://www.whitehousehistory.org/videos/the-burning-of-the-white-house
By "we" you mean the UK mostly. In modern times if the US for some reason invaded Canada we'd have zero chance whatsoever and would be levelled to the ground.