Britain's nuclear submarine fleet, long marketed as a round-the-clock shield, is facing intense pressure from aging boats, chronic delays, and overstretched crews. Cold War patrols typically lasted ...

Royal Navy plans to add two nuclear-powered attack submarines to its arsenal. Last week, King Charles III welcomed HMS Agamemnon, named after the war-hungry mythical Greek king, into service. HMS ...

A former British Royal Navy chief deemed the U.K. “no longer capable” of managing a nuclear submarine program. Retired Rear Adm. Philip Mathias said the country is failing to build the submarines ...