WW2 was saved by the Russians. The fact that Hitler broke off the idea of invasion due to Britains defense up to that point, and foolhardedly starting an eastern front. I think its safe to say that given a year or so to make proper invasion craft, and not starting a war with the Soviet Union, and without help from the US, no one could imagine the UK, or anyone at that point holding up for long.
As far as Canada I love em. They come down every summer and spend alot of money in my area. Some Quebecians have a bit of an attitude, but then again, what country doesnt have their own brand of jerks.