Possibly. One way to find out.
I promise that if I felt threatened or felt that my family, friends, or property was under attack I'd shoot first, reload, shoot some more, then let someone else ask questions as I reloaded again.
Almost happened about 4 years ago. Up late with my bro at my parents house. Middle of the country, their house sitting about 200+ yards off the road, car flies up the driveway at 1:00 am. Wake up dad and head out there. Found out later they were running from the cops, who eventually caught up with them there. Good thing. Dad and I had loaded 12ga pump actions pretty effin' quick. Guys (2 of them) told the cops they knew us. BS. Dad told the cop he was glad they were there b/c if they took another step towards him, when we were standing at the door in the house telling them not to come any closer, he would've shot. Officer looked at one of the guys and said, "Ya here that? He would've too. That's his right if you invade his property."
It's hard to say for sure I guess. I just really don't think I'd lose sleep over it.
When was the last time a group of Canadians overran part of Montana?