had USA plans to invade Canada in the 1930's

I heard that not too long a go, but im unsure if this was a joke or not - that the US government had plans drawn up in the 1930s to invade Canada. WW2 got in the way however.

I’ve heard it too, but can’t provide a cite. IIRC it was just a contingency plan; then have one for everything, probably up to and including alien invasion.

Duplicate of http://boards.straightdope.com/sdmb/showthread.php?t=369598
Closed.

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