I don’t think you really want to go there. No country is so self-sufficient that they can afford to be petty and isolate itself from the rest of the world. Though you can try and see how far that gets you.
If push came to shove, as unfortunate as it would be, Canada can always make new alliances and trade with other countries. We will be fine. If, however, you go into a snit and build your walls, you’ll probably find, as every other country in history has found, those walls, metaphysical and real, change from being protective to being imprisoning.
As I said, Harper did you a favour, whether you realize it or not.
Dude please you r sparsely populated country can barely defend itself. Be careful where you run your mouth, because you have nothing too back it up with. Get back to me when russia claims the arctic. Well see how bad ass your country is.