4. The Canadian Front: A Key Battlefield
Because Canada was a loyal British Dominion, War Plan Red identified it as the primary theater of operations in any conflict with Britain. U.S. strategists envisioned rapid invasions targeting major Canadian cities like Montreal, Quebec, and Toronto, aiming to seize key railways and ports before British reinforcements could arrive. Multiple invasion routes were mapped out from the northern U.S. border, reflecting both geographic realities and the urgency of overwhelming Canadian defenses—an approach reminiscent of invasion plans against Mexico and Japan in other war scenarios (via CBC).
