In such a scenario, the Canadian military envisions small groups of irregular fighters or armed civilians carrying out ambushes, sabotage or drone warfare, the Globe reported.
Those tactics could include so-called “hit-and-run” attacks involving improvised explosive devices, similar to those used by the Taliban in Afghanistan against the US and allied forces, including Canada.
I don’t think there needs to be an invasion. A dude managed to break a window at the vice president’s house recently. He was armed only with a hammer. I’ll let you use your imagination what a single person with more serious equipment might be capable of pulling off.