Dipshit DBS,
If the Port of Vancouver, or the Port of Montreal were blockaded (how very last century) then Canadian imports and exports would all flow via the US......which is clearly better for the US.
On the nuclear deterrent, you are correct as Canada is still not a permanent member of the Security Council. As for the large northern tundra, where else would Canadians or Americans, even the simple folk like you, want to shoot down the Russian planes/missiles? For over 3 generations ( that's enough fingers and toes for you and at least two cousin/brothers) there has been this thing called NORAD. We just use it once a year to track Santa, but you could look it up and see that its run outta them mountains in yer Colorado. Let me spell that slowly for you N O R A D. Now go get somebody to help you look that up on your google.
If you need any more help with your strategic "thoughts", as it were, I'm happy to walk you through the parts where you need your hand held.
Go Steelers.