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Canada-US War Plans 1921-1930

Canada and the US drafted contingency war plans during the interwar era, with Canada's Defence Scheme No. 1 and the US War Plan Red aiming to counter potential threats from each other.

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Jan 17, 2026
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How did U.S. War Plan Red compare, step‑by‑step, with Canada’s Defence Scheme No. 1?

Both plans were contingency warbooks drafted in the interwar era: Canada’s Defence Scheme No. 1 directed audacious pre‑emptive “flying column” strikes into the northern United States to buy time for I...