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The Guardian - US
The Guardian - US
World
Leyland Cecco in Toronto

The US drew up a plan to invade Canada in 1930. Now Trump is reviving old fears

A city square
Victoria Square in Montreal, Canada, circa 1930. Photograph: FPG/Getty Images

First, American forces would strike with poison gas munitions, seizing a strategically valuable port city. Soldiers would sever undersea cables, destroy bridges and rail lines to paralyze infrastructure. Major cities on the shores of lakes and rivers would be captured in order to blunt any civilian resistance.

The multipronged invasion would rely on ground forces, amphibious landing and then mass internments. According to the architects of the plan, the attack would be short-lived and the besieged country would fall within days.

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