So, here's my defense plan for Canada. Basic philosophy: it is unsafe to wait for an attack.
1. Get public confirmation from NATO that Article 5 applies even if the aggressor is also a NATO member.
2. Send an ultimatum to Washington demanding a public acknowledgement of Canadian sovereignty by the President and confirmation of non-aggression.
3. In the absence of that acknowledgement, sever diplomatic ties, close the borders, and embargo trade. Blow bridges, tear up roads and rail lines.
4. Evacuate Canadian civilians from the border area; probably 300km or more. Yes, this is where most Canadians live.
5. Declare a security corridor of 300km on the other side of the border, in US territory. Any military activity in that area is a sign of imminent aggression and will prompt a defensive strike.
6. If anything occurs, surge forward and take territory. Keep any war on US soil, not in Canada.
@evan I thought that step 3 was ridiculous, and then step 4 was “evacuate the greater golden horseshoe.”
@smiteri yeah, we are not really set up for an invasion! Having 2/3 of your population on the enemy's border is not a recipe for success.
Have you thought about this? How would you defend Canadian sovereignty from a US invasion?
@evan As far as I can tell, it’s not doable. They can hit everything we have from the air.
If they send a very small task force to seize a power plant or something, we can shoot them. Anything more than that quickly requires recourse to science fiction.
Your steps 1 and 2 are about it.
@smiteri yes, long-range bombers can hit anywhere in Canada. Short-range ones can hit pretty deep.
Moving our people away from the border lowers that risk, though. And maintaining a security corridor inside US territory to make it harder to keep up a bombing campaign may help too.
But our cards are not great. Our best advantages: very long borders, huge territory, European and maybe Asian allies, big dependence by the invader on our energy supply.
And morale.
@smiteri Oh, the other big advantage is that we have a border with the invader, and aren't half a planet away, like Afghanistan and Vietnam.