Thought I would toss this out there. FW Rudmin (the professor who posted this 1935 Invasion Plan) also wrote a book in 1995 called Bordering on Aggression. He states - in his opinion as fact - that Fort Drum was set up to invade Canada. Here is the synopsis from his book jacket:
Bordering on Aggression: Evidence of Us Military Preparations Against Canada
From Jacket:
The United States has placed an attack force on the Canadian border south of Ottawa. The base that houses this force is inappropriate for training or overseas deployment but is ideally located, equipped and trained for intervention in Canada. In fact, that is all Fort Drum forces can effectively and efficiently do.
Many Canadians would like to think that the United States would never consider military action against Canada. Perhaps it is our vulnerability, or it could be that we don‘ t want to suspect a friend. Canadian schools teach that our two countries stopped being enemies at the end of the War of 1812 and have been friends ever since. In this century, our forces have fought only as allies. We have the longest undefended border in the world and we are proud of it. That pride is both unfounded and dangerous- The United States has made elaborate preparations for war against Canadians in the 20th century. Rudmin looks at these plans for clues to what the United States might do in the future.
Current U.S. top-secret war plans are, of course, not available but there are ways of uncovering intentions. Just as in a murder investigation, you look at means, motive, opportunities, careless statements; character, history and you build a case. Rudmin produces enough evidence to make all but the most complacent among us sit up and take notice. Rudmin builds his case relentlessly, not only examining supporting arguments, but using the process of elimination to ensure that there is no reasonable doubt. The United States has prepared an effective and specialised attack force and, under the right circumstances, is capable of using it against Canada.
Here‘s the link I found it on:
www.maxdelta.com/catalogue3.asp?sku=4170
So, just stirring the pot some more.
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BTW - I did have a French connection in my book, albeit mercenaries with shoulder-launched missiles against the U.S. and Canada, but still I think France would definitely have a greater economic interest in Quebec and form some kind of partnership rather than a recolonization of New France.