Long before modern alliances and trade agreements, the United States reportedly drafted a secret contingency plan to invade its northern neighbor, Canada. Known as War Plan Red, this military strategy was part of a series of color-coded war plans developed in the early 20th century. The plan, which has recently resurfaced in public discourse, highlights a forgotten chapter of North American history.

What Was War Plan Red?

War Plan Red was a hypothetical military strategy created by the U.S. Army in the 1920s and 1930s. It outlined a full-scale invasion of Canada, which was codenamed Red in U.S. military planning documents. The plan was part of a broader set of color-coded plans that also included scenarios for conflicts with Mexico, Japan, and other nations.

The plan was never executed, but it was detailed enough to include specific troop movements, naval blockades, and even the occupation of key Canadian cities. According to historical records, the U.S. military considered the possibility of a war with the British Empire, and since Canada was a British dominion, it became a primary target.

Key Elements of the Plan

  • Seizure of Halifax and Quebec to cut off British reinforcements.
  • Invasion from the northern border with a focus on capturing major transportation hubs.
  • Naval operations in the Atlantic and Pacific to disrupt British supply lines.
  • Potential use of chemical weapons, which were not yet prohibited by international law at the time.

Why Was It Kept Secret?

The plan was classified and kept out of the public eye for decades. It was only declassified in the 1970s, revealing the extent of military planning between the two nations. The secrecy was likely due to the sensitive nature of planning an invasion of a friendly neighbor, especially as relations between the U.S. and Canada improved over the years.

Historians note that the plan was more of a precautionary measure than a realistic intention. It was part of a broader military strategy to prepare for any potential conflict with the British Empire, which was still a global superpower at the time. However, the plan's existence underscores the volatility of international relations in the interwar period.

How Did Canada Respond?

Canada, for its part, had its own contingency plans. Defence Scheme No. 1 was a Canadian military plan designed to counter a potential U.S. invasion. It involved a preemptive strike into the northern United States to slow down an American advance, giving Canada time to mobilize its forces and await British support.

While these plans were never put into action, they reflect the mutual suspicion that existed between the two countries in the early 20th century. It wasn't until the Second World War and the subsequent Cold War that the U.S. and Canada became the close allies we know today.

Legacy of War Plan Red

War Plan Red remains a fascinating footnote in military history. It shows how even friendly nations can be the subject of military contingency planning. The plan was officially abandoned in the 1930s as the threat of war in Europe and the Pacific grew, and the U.S. shifted its focus to other potential adversaries.

Today, the plan is often cited as an example of how military planners prepare for worst-case scenarios, even those that seem highly unlikely. It also serves as a reminder of the complex and sometimes tense relationship between the U.S. and Canada, which has evolved into one of the world's most enduring alliances.

Key Takeaways

  • War Plan Red was a secret U.S. military plan to invade Canada, developed in the 1920s and 1930s.
  • The plan was part of a series of color-coded contingency plans for potential conflicts with various nations.
  • Canada had its own counter-plan, Defence Scheme No. 1, to respond to a U.S. invasion.
  • The plan was never executed and was declassified in the 1970s.
  • It highlights the historical tensions between the two nations, which have since become close allies.

While the idea of a U.S. invasion of Canada seems unthinkable today, War Plan Red offers a unique glimpse into the military mindset of a bygone era. It's a story that continues to capture the imagination of historians and military enthusiasts alike.