Noone. It’s not gonna happen. As I keep pointing out, Trump hasn’t even hinted at the idea of using military force in Canada. He talks about “they should become our 51st state”, but he’s never said anything like “They’ll join us whether they want to or not” the way he has with Greenland or Panama, and even specifically said in a press conference that he only wanted to use “economic pressure”. Trump isn’t as clever as he thinks he is and he’s not good at being coy or disguising his motives - if he was actually thinking, at all, about invading Canada, he would be saying so out loud, and he’d be bragging about how easy it would be in an attempt to convince Canada to surrender preemptively.
All of this speculation is just reading into things that aren’t there.