And the American count for becoming a Canadian citizen might be 30%, and that 10% is going to be mostly Canadian born. Hell, aside from the tax requirements, I'd take a green card. It wouldn't hurt! I still wouldn't move there.

In any war, most people don't fight. The Taliban was never anywhere close to most Afghans. Afghans are more used to war and harsh conditions, but again, there's massive advantages we have they didn't, as well.