Personally, I don’t think we would have a dust-off with the Canadians. And it has nothing to do with the Canadians ability to do warfare (you’d be a fool to dismiss them) but… because they are Canadians! I mean, they are too nice, they would be apologizing before the first shot is taken and let’s face it: we can be pricks, but to Canadians? No way.
What I envision happening is the two armies meeting at the border and talks begin. Somebody will come up with the idea of a week-long hockey tournament to at least have some sort of “battle” going and then figure out what to do. Soon after the tournament starts, capitalism takes over and between barrels of Jack Daniels, Sam Adams, Molson and Crown Royal, things go downhill.
A week later, Canadians and Americans warriors wake up with humongous headaches in a strange hotel in an even stranger city. Hookers everywhere, the rooms trashed, fires burning in the parking lot. A groggy Canadian Colonel sees that a Marine PFC, looking worse for wear and sipping a hot cup of MRE coffee is watching TV. Rubbing his eyes, the Colonel asks him what in the hellacious is going on. The PFC responds:
“I am not sure, Sir. I don’t remember much after the semifinals began. But according to the news here in that TV, it says that we invaded Mexico and Americans have a New territory called Nuevo Texas. Your guys have a new province called New Gretzky and that the natives in Acapulco are pissed off because the Québécois have taken over the town and refuse to speak anything but French.”
At least, that is the way I see it happening.
PS: if you like SciFi with heavy warfare, you should look up Michael Z. Williamson. I am not a SciFi fan, but enjoy his Freehold series immensely.