From Nationalpost · · 1m
U.S. Secret Plan to Invade Canada
U.S. military's 1930 contingency plan for invading Canada if war with Britain breaks out.
In brief
U.S. military's 1930 contingency plan for invading Canada if war with Britain breaks out. A 1930 U.S. military contingency plan called War Plan Red included invasion of Canadian cities to prevent British naval access. Originally reported by Nationalpost.
U.S. Military Plan
A top secret 1930 U.S. contingency plan called for the invasion of Canada in the event of war with Britain.
“A top secret 1930 U.S. contingency plan called for the invasion of Canada in the event of war with Britain”
Declassified in 1974
The plan was declassified in 1974, relates letter writer Paul Baumberg.
“The plan was declassified in 1974, relates letter writer Paul Baumberg”
War Plan Red Details

War Plan Red (formalized in 1930 and declassified in 1974) was a contingency plan for conflict with the British Empire.
“War Plan Red (formalized in 1930 and declassified in 1974) was a contingency plan for conflict with the British Empire”
Targeted Canadian Cities
The plan involved U.S. military operations in Halifax, Niagara Falls, Montreal, Quebec City, Toronto, Winnipeg, Vancouver, Victoria, and other locations.
“The plan involved U.S. military operations in Halifax, Niagara Falls, Montreal, Quebec City, Toronto, Winnipeg, Vancouver, Victoria, and other locations”
Canadian Response
Canada drafted Defence Scheme No. 1, conceived by Lt.-Col. James "Buster" Sutherland Brown.
“Canada drafted Defence Scheme No. 1, conceived by Lt.-Col. James "Buster" Sutherland Brown”
Modern Context

The letter writer notes current trade tensions with the U.S. as a contrast to the 1930 plan.
“The letter writer notes current trade tensions with the U.S. as a contrast to the 1930 plan”
The takeaway
A 1930 U.S. military contingency plan called War Plan Red included invasion of Canadian cities to prevent British naval access.


