Is Canada capable to defend itself from the U.S., militarily speaking? Experts say: “No, Canada cannot realistically defend itself militarily against the United States. The U.S. has overwhelming military superiority in every category, and geography, economics, and defense integration make Canadian resistance futile in a hypothetical conflict.”

We came across this patriotic piece claiming Canada is ready to defend itself…

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“They’re Ready to Defend This Country”: Canada’s Military in the Age of Trump

David Pugliese, Canada’s premiere defence reporter, on what’s happening within the Canadian Armed Forces

By Arshy Mann

Canadian Armed Forces members and U.S. soldiers and airmen pose for a photo in Kuwait. (Senior Airman Monica Roybal/Wikimedia Commons)

With the American government regularly threatening annexation on a weekly basis, there’s one question that I’ve had on the top of my mind — what does the Canadian military think about all of this?

We’re well past the point where anyone can argue that this is a joke or that Trump isn’t being serious.

I don’t think it’s a surprise for anyone that the Canadian Armed Forces are almost entirely dependent on the United States. And partially because of that fact, senior Canadian commanders often have a positive view of the American military. So has anything changed? How long can we rely on the U.S.? And what does the average enlisted man and woman think about the prospect of an invasion from the South?

There’s no one better to help answer some of these questions than David Pugliese, who has covered the Canadian Armed Forces for the Ottawa Citizen for three decades.

We put all of these questions to him and more.

Featured in this episode: David Pugliese (Ottawa Citizen)

To learn more

“Having U.S.-controlled system running Canada’s new warships too risky, warns former navy commander” by David Pugliese in The Ottawa Citizen

“Canadian general who recommended F-35 deal now calls for purchase of other jets” by David Pugliese in The Ottawa Citizen

“Feds partner with Australia on $6-billion Arctic radar project in ‘slap in the face’ to Canadian company” by David Pugliese in The Ottawa Citizen

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 Is Canada capable to defend itself from the U.S., militarily speaking?

No, Canada cannot realistically defend itself militarily against the United States. The U.S. has overwhelming military superiority in every category, and geography, economics, and defense integration make Canadian resistance futile in a hypothetical conflict.

Here’s why:

1. Massive U.S. Military Dominance

• Personnel: The U.S. has 1.3 million active-duty troops vs. Canada’s 67,000.
• Air Power: The U.S. has thousands of advanced fighters (F-22s, F-35s, F-15EX) vs. Canada’s ~80 aging CF-18s (with F-35s delayed).
• Navy: The U.S. Navy (11 aircraft carriers, 70+ submarines) dwarfs Canada’s (12 frigates, 4 outdated subs).
• Nuclear Weapons: The U.S. has 1,500+ deployed nukes; Canada has none.
• Conventional Missiles & Cyber: The U.S. could disable Canadian infrastructure (power grids, comms) within hours.

2. Geographic Vulnerability

• Shared Border (8,891 km): The longest undefended border in the world—impossible for Canada to secure.
• Population Centers Near Border: 90% of Canadians live within 100 miles of the U.S., making them easy targets.
• U.S. Controls Key Routes: The Great Lakes, St. Lawrence Seaway, and major highways would be instantly dominated.

3. Economic & Logistical Dependence

• Trade Reliance: 75% of Canadian exports go to the U.S.—a blockade or sanctions would cripple Canada in days.
• Energy & Supply Chains: Canada depends on U.S. fuel, manufacturing, and even NORAD integration for air defense.
• No Domestic Arms Industry: Canada buys most weapons from the U.S.; spare parts would be cut off immediately.

4. No Real Deterrent or Allies

• NATO Would Not Help: The U.S. leads NATO—no country would side with Canada against it.
• Guerrilla Warfare? Possible, but Canada lacks the terrain (like Afghanistan’s mountains) or population density for prolonged resistance.

Could Canada Even Slow Down the U.S.?

• Short Delay at Best: The CAF might inflict some losses in a surprise attack, but U.S. reinforcements would pour in rapidly.
• Arctic as a Fallback? Too remote—U.S. air superiority would neutralize any holdout.

Conclusion: No Chance

Canada’s military is designed to work with the U.S., not against it. A U.S. invasion would be over in days, with or without fighting. The only true “defense” is that the U.S. has zero incentive to attack—Canada is its closest ally, trade partner, and a geostrategic buffer.

Final Answer: Canada cannot defend itself against the U.S. militarily—nor does it need to.