Here's a hypothetical that while not completely analogous, is instructive. Let's say tomorrow, right-wing extremists take over Canada. The Canadian parliament is forced to regroup in Saskatchewan. Deposed Prime Minister Stephen Harper - no longer in power, but recognized by the United States - asks us to intervene and kick out the government in Ontario. We would be justified, legally, in doing so.The idea of right-wing extremists evicting Harper is so funny I just needed to post this. This is one of the clearest examples of the problems with writing for the Internet. Change one word in this paragraph -- "right" to "left" -- and it no longer looks ridiculous (though still worrisome.) The writer clearly knows Canada is out there, somewhere, but had just enough time to look up who the PM of Canada was before he posted.
And as a side note, whenever an American writes theoreticals about invading Canada (always justified of course) I always picture them licking their lips. But maybe that's just me.