The Bridge with Peter Mansbridge Who & What Is Underwater in Canada's Arctic? - Encore
May 14, 2025
Join Professor Adam Lajeunesse, a historian and Arctic expert from ST FX University, as he explores Canada’s Arctic defense strategies and submarine operations. He discusses the historical significance of Cold War submarines and their role in monitoring foreign activities in Arctic waters. The conversation dives into the complexities of acquiring new submarines and the operational challenges faced by the aging Victoria-class fleet. With geopolitical threats looming, Lajeunesse emphasizes the urgency of strengthening Canada’s naval capabilities.
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US-Canada Arctic Submarine Cooperation
- US submarines began Arctic under-ice operations in the 1940s and 60s with Canadian cooperation.
- Canada contributed hydrographic data and operated with the US on Arctic defense during the Cold War.
Arctic Underwater Defense Focus
- Canada and the US developed under-ice detection tech in the 60s-80s to monitor Soviet subs.
- The focus was strictly defense: tracking potential Soviet submarine missile threats in Arctic waters.
Nuclear vs Conventional Submarine Range
- Nuclear submarines have near unlimited underwater endurance due to their power source.
- Conventional submarines must surface for battery recharging and thus have limited under-ice operational capability.