There's a book that came out I think back in the 80s about the break up of North America into something like six separate nations. In the northwest British Columbia, Washington State,Oregon, northern California became one country, New England states, New Brunswick, Maritime Islands Nova Scotia, Newfoundland became another country, and so-on.

It would be interesting to see if the Canadian government allowed Quebec to seceded from Canada, and if this would have some kind of domino effect. I think the U.S. and Canadian federal governments would do EVERYTHING in their power to prevent a state or province from seceding.