Honestly, I wouldn’t venture into the Sierra Madre even with the US Army at my back. This is the scariest book I’ve read since Hunter Thompson’s Hell’s Angels…
I’ve literally found ANOTHER book recently where North Korea invades the US by sending 40,000 “tourists” into Canada with the justification “There’s no border security so we can all infiltrate en-masse and they won’t realize it until we attack”
TIL that Canada has no border security, either. 
I have read invading armies can become bogged down due to mud and winter. Canada has those. Sure it is a nice country - in the summertime… 
Unfortunately, we also have decent quality major highways that literally link us directly to the major invasion routes the Americans will be using.
We’ve got a few bridges we could bomb in Ontario, but the country west of us is wide open.
Invading Canada just sounds like so much work. Can’t we just buy up all the Tim Hortons and shutter them for a week or two until the Canadians cry “oncle”?
Or convert them all to Dunkin Donuts and make them submit!
Hey, hey, hey! I never said anything about war crimes.
Could be worse, DD is only cruel, Starbucks would be the War Crime.
Desperate times call for desperate measures. Our troops will be up agaisnt a polite people who will fight back with kindness, Canadian beer, French Canadian girls and lumberjack hunks. We are doomed to fail under those types of conditions.
We’d have better luck with fighting the Narcos holed up in the Sierra Madres. At least that is a type of war we know, Afganistan in the jungle.
Would we need badges for that?
We neither want nor need no stinking badges! 
An invasion might increase the American share of companies in Canada from the high current level to a slightly higher one.
How long would it take to notice if someone installed a puppet government?
And the invaders would slip up. They would suggest getting rid of interprovincial tariffs, an effective senate or having a powerful central government. And the provinces would not stand for this. Nor would Poilievre. Who would even be PM then? Will our military be stronger than now?
Yep.
We could invade Mexico to destroy the cartels and stop the corruption and drug trafficking… and with that stated goal, maybe get away with it.
Say a President of Mexico asks that we do it? That is a real maybe.
Afterwards we keep Baja.
Rocky Point. Spring break destination of choice for AZ. Nice town, too.
Also poutine. Our troops will be dropping like flies from clogged arteries.
Just conscript all your truckers into service. They’ll take care of securing the roads and bridges.
Give Manhattan back to WHO??
(Cecil (remember Cecil?) discusses, July 31, 1992:)
Note the claim that, not only did Peter Minuit buy Manhattan from the Canarsie tribe, seemingly for a pittance, but furthermore, the Canarsie didn’t actually live on that island, and perhaps had no ownership claim to it in the first place. It may not have been theirs to sell!
Funny Cecil would mention Donald Trump disparagingly in 1992. But you make a fair point.
I forgot to mention the Russians liberating Alaska from oppression. I believe they will call it Eastern Ucrania.