I wonder if they had a plan for occupying Canada. As the conflicts in Iraq and Afghanistan have proven, the challenges of long-term occupation are of a differe

I wonder if they had a plan for occupying Canada. As the conflicts in Iraq and Afghanistan have proven, the challenges of long-term occupation are of a different order of magnitude than merely defeating a nation's military. Additionally, a Canadian insurgency would likely be far more difficult to deal with than either of those countries. The population is higher than either Iraq or Afghanistan, geographically more spread out and better educated/trained/equipped on average. e.g. Canada is nowhere near the U.S. in terms of total gun ownership, but they do have a lot of rifles that see daily use (Bears, eh!). There's also no language barrier and massive avenues for intelligence leaks both ways thanks to the intertwined nature of the two nations, but such leaks do tend to benefit the smaller, more mobile side asymmetrically. The U.S. economy would likely be crippled due to loss of trade with the U.S.'s largest trading partner as well as foreign sanctions. Large portions of the U.S. would be left without electrical power. The flow of fossil fuels from North of the border would soon stop and likely stay stopped (Pipelines are railroads are relatively easy for their own workers to disable). I honestly doubt any U.S. administration that tried to attack Canada would survive the domestic insurrection that would soon occur.