Would U. S. military invasion of Canada generally be as successful as predicted by Canadians?

Would U. S. military invasion of Canada generally be as successful as predicted by Canadians?




This is a reference to Howard Coombs:
https://www.queensu.ca/cidp/people-search/howard-coombs-phd

Clearly he has some relevant expertise on the subject being familiar both with Canada's military and the nature of insurgences the only resistance Canada really could offer.

Summery:
* He says Canada would fall quickly in a campaign similar to War Plan Red.
https://en.wikipedia.org/wiki/War_Plan_Red

This would of course be done with modern military doctrine, similar to the invasion of Iraq or Afgainstan, smart bombs and precision strikes to cripple the country while preserving as much of the people and infrastructure as possible.

* Canada Currently has almost no military, with around 68k active solders ready to fight today:
https://www.globalfirepower.com/country-military-strength-detail.php?country_id=canada

* Coom'bs said this would largely be a sacrificial force if sent against America 1.3 million better equipped solders ready to fight today.
https://www.globalfirepower.com/country-military-strength-detail.php?country_id=united-states-of-america

* Pointing out that America's elite special forces caring out the precision attacks crippling Canada would equal Canada's regular army man for man.

So Canada's only real defense scheme is an insurgency. Here Coombs an actual military expert on Insurgency claims Canada would not likely wage much of one.

* Insurgencies tend to be run by a tiny share of the population and require forign aid in materials and equipment. Canada having no other borders and NORAD being very effective at controlling North American air and sea there is almost no way for anyone to aid Canada.

That means Canadian insurgents would run out of materials and support for their campaign rather quickly.

Updates
1 y
This is a question about how the war would go, NOT whether or not it is a good idea.

Presumably for the context of the question approve is given for the war.
Would U. S. military invasion of Canada generally be as successful as predicted by Canadians?
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