US invasion plan for Canada (1920) [pdf]
strategytheory.org
strategytheory.org
In light of that, I might be coerced into supporting an invasion of Canada...
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.
http://en.wikipedia.org/wiki/War_Plan_Red
Also, if you find that interesting you might like the exercise "Operation Skyshield" that had UK nuclear bombers successfully penetrating US air defenses in the 1960s:
http://en.wikipedia.org/wiki/Operation_Skyshield
Edit:
Also, the book "What Ifs? of American History" has a scenario with the US going to war with the British Empire in 1896 - with the apt title of "The Whale Against the Wolf".
http://en.wikipedia.org/wiki/What_Ifs%3F_of_American_History
May these gates never be closed
As fascinating and as much as I like these topics, this is on Hacker News because....?
From the guidelines: anything that gratifies one's intellectual curiosity.
Seems you answered your own question.
[edit] There is also still territory whose sovereignty is disputed between the U.S. and Canada. Machias Seal Island is a small desolate rock off the Coast of Maine. Both countries claim it. Canada posts 2 Canadian Coast Guard folks on the island year round just to reaffirm their claim. http://en.wikipedia.org/wiki/Machias_Seal_Island
1.Quebec separates from Canada. 2.Northing Quebec (Native) separates from south (French) 3.Protesters interrupt power lines through northern Quebec. 4.New York City goes dark. 5.US Paratroopers land in northern Quebec to restore NY power.
jokes
Otherwise we really don't have much reason to invade.
Ever since Wilson, we've been imperial.
But wouldn't you have to say that the imperialism at the lastest started during McKinley's administration and continued into Roosevelt's (consider for example Roosevelt's actions towards Colombia to get the Panama canal).
But let's be fair, Wilson held out for a long, long time as far as WWI was concerned. Teddy would have got into the war 2 years earlier.
I am interested in how the direct election of U.S. senators ties to imperialism?
(Also, I feel it's worth pointing out that if you asked most American's: "whose language is 'English'?", they would assert without a hint of irony that English belongs to America.)