Briev
Live
World

Canadian Submarine Sinks Decommissioned US Warship in Hawaii Drill, Boosting Recruitment Drive

HMCS Corner Brook fired a live Mark 48 torpedo at the retired USS Mobile Bay during a Rim of the Pacific exercise, showcasing Canada’s submarine capabilities and aiming to attract new recruits.

In a live-fire segment of the Rim of the Pacific 2026 exercise, HMCS Corner Brook fired a Mark 48 torpedo from roughly one mile away, sinking the decommissioned USS Mobile Bay in deep water north of Kauai. Lieutenant-Commander Clark Hubbard described the operation as a rare opportunity to demonstrate Canadian submarine capabilities to the public and potential recruits. The sinking occurs as Canada negotiates with Thyssenkrupp Marine Systems for up to twelve new diesel-electric submarines to replace the aging Victoria-class fleet.

With only 193 qualified submariners on hand, far fewer than the 28 crew members each new vessel will need, the navy is intensifying recruitment and training efforts, including exchanges with German and Norwegian forces. Experts warn that generating enough skilled personnel, especially for specialized roles, will take years and may be hampered by retirements and competition from the private sector. The successful torpedo launch is hoped to boost morale and public interest as Canada prepares for a larger conventional submarine force in the coming decade.

Why it matters

The drill highlights Canada's push to modernize its navy, a move that demands many new submariners and impacts national defence capabilities.

In this story

HMCS Corner BrookUSS Mobile BayMark 48 torpedoRim of the Pacificsubmarine recruitmentVictoria-class fleetThyssenkrupp Marine SystemsCanadian Submarine Forcenaval trainingsubmarine crew shortage