Top Secret 'War Plan Red' (Little Upsilon)

I watched an interesting documentary on Channel 5 about top secret 'War Plan Red' found in the American archives. It was drawn up in the 1920/30s by the American military to attack the British Empire by invading Canada, and attacking the Royal Navy in the Atlantic ocean. What would have happened if the plan was put into practice?

http://en.wikipedia.org/wiki/War_Plan_Red

canada might have fallen but the royal navy would have held its own to a stalemate and the british empire would prevail, but history and hitler had other idea's, this is the world we all live in now.....the plan's NEVER been shelved! though

I agree, Canada might have fallen but yes but no further US advance.

WW1 knocked the British but WW2 ruined them. They should have given democratic rights to all the states at Westminster like Capitol Hill, they might not have run off so fast.