kersploosh

Agreed. But it’s a slow-rolling one so far. I think defiance of an order of war would boil over a bit faster.

I would expect an invasion order to be a breaking point that causes US political collapse and possibly a civil war.

The military brass might very well break the chain of command and refuse to follow an order to invade Canada. While I think that would be the right move, it would be a major constitutional crisis and there is no resolution that would not send one political faction or another completely off the rails.