The U.S. is building 12 Columbia-class submarines armed with ballistic missiles to serve as its sea-based nuclear deterrent ...

Columbia-class submarines will be the largest ever built for the US Navy, with a submerged displacement of 20,810 tons and an ...

China’s Victory Day parade in September showed off a new, uncrewed submarine the size of a semi-truck — meant to keep tabs on US vessels and seafloor cables — and shined a spotlight on Beijing’s ...

Australia, the United States and Britain announced in 2021 they would transfer nuclear powered submarines to Australia, and two years later detailed an ambitious pathway that would ...