Details of an amazing American military plan for an attack to wipe out a major part of the British Army are today revealed for the first time.
In 1930, a mere nine years before the outbreak of World War Two, America drew up proposals specifically aimed at eliminating all British land forces in Canada and the North Atlantic, thus destroying Britain's trading ability and bringing the country to its knees.
Previously unparalleled troop movements were launched as an overture to an invasion of Canada, which was to include massive bombing raids on key industrial targets and the use of chemical weapons, the latter signed off at the highest level by none other than the legendary General Douglas MacArthur.
The plans, revealed in a Channel 5 documentary, were one of a number of military contingency plans drawn up against a number of potential enemies, including the Caribbean islands and China. There was even one to combat an internal uprising within the United States.
In the end there was no question of President Franklin D. Roosevelt subscribing to what was known as War Plan Red. Instead the two countries became the firmest of allies during WW2, an occasionally strained alliance that continues to this day.
Still, it is fascinating that there were enough people inside the American political and military establishment who thought that such a war was feasible.
While outside of America, both Churchill and Hitler also thought it a possibility during the 30s - a time of deep economic and political uncertainty.
In 1931, the U.S. government even authorised record-breaking transatlantic flying hero and known Nazi sympathiser Charles A. Lindbergh to be sent covertly as a spy to the west shore of Hudson Bay to investigate the possibility of using sea-planes for warfare and seek out points of low resistance as potential bridgeheads.
Four years later, the U.S. Congress authorised $57million to be allocated for the building of three secret airfields on the U.S. side of the Canadian border, with grassed-over landing strips to hide their real purpose.
All governments make 'worst case scenario' contingency plans which are kept under wraps from the public. These documents were unearthed buried deep within the American National Archives in Washington, D.C. - a top-secret document once regarded as the most sensitive on earth. . .