The British Royal Navy has laid the keel for its largest-ever nuclear submarine. Traditionally, governments have held ceremonies for the laying of the keel on notable projects, as it signifies the ...

Most of China's submarine fleet is diesel-electric, but Beijing is ramping up production of nuclear-powered classes.

To reshape America’s nuclear deterrent and improve maritime capabilities, the US Navy’s first Columbia-class ballistic missile submarine (SSBN), the future USS District of Columbia (SSBN 826), has ...

What You Need to Know: The Russian Navy has decommissioned the Dmitry Donskoy, the last active Typhoon-class submarine and the largest submarine ever built. Initially entering service in 1981 as ...