Posted by: Patrick Allen Foster | January 30, 2015

Si vis pacem, para bellum; or, it would be irresponsible *not* to make contingency plans for an invasion of Canada

Matt Yglesias, at Vox, in discussing a number of counter-factual maps (with a telling emphasis on New York, I note), mentions War Plan Red, a 1920s US Army war plan for use in the event of a general conflict with the British Empire (emphasis added):

War Plan Red…assumed that Britain would start the war with a slightly larger navy and much larger army than the United States, so the key to American strategy was to start an essentially defensive effort until greater US industrial might could be brought to bear to construct a navy capable of blockading Britain. But the best way to defend the United States from a British invasion was to launch a preemptive invasion of Canada (code named Crimson), then still part of the British Empire. The first target was to be a quick amphibious assault on Halifax, Nova Scotia, which would deny Britain a convenient Canadian port and make it difficult for it to support Canada’s military. Then two parallel invasion forces would head north from North Dakota and Vermont aimed at captured Winnipeg (a key rail junction) and Qu├ębec City (thus preventing the use of the St. Lawrence River as an alternate port) respectively.

(H/T: Will Truman.)

Image Source: CIA via Wikimedia Commons.

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