US military alliance is “ironclad”, defence chiefs from both countries have declared, arguing the century-old partnership will remain crucial in preserving mutual national security.

The 377-foot vessel can dive to depths of more than 800 feet below the surface and maneuver at speeds of over 25 knots.

A look at the sheer scale, history, and evolution of 10 of the biggest military submarines ever made, from early experiments ...

The USS Iowa (SSN 797) — the Navy’s first submarine to be named after the U.S. state — was commissioned in a ceremony on ...

The new Navy submarine, a nuclear-powered Virginia-class vessel, is the first submarine to be named for the state.

USS Iowa (SSN-797), the 24th submarine of the Virginia-class, was commissioned at Naval Submarine Base New London in Groton, ...

Houston, Texas, was struck by three 500-year flood events from 2015 through 2017, according to local officials at the time. The events included Hurricane Harvey, the heaviest recorded rainfall ever in ...

The Navy is counting on innovations to help it build and staff submarines and ships more efficiently as demand for the ...

Several people have been killed or injured after *** tourist submarine crashed off the coast of the city of Hurgada on the Red Sea in Egypt. The crash occurring at about 10 a.m. local time ...

Crew members of the USS Indiana submarine are back at their home port Thursday afternoon in Groton following their six-month mission at sea. The crew is glad to be home, and ...

A US nuclear-powered submarine has pulled into Darwin Harbour, with authorities keeping the high-value vessel under close wraps from the public eye. On Thursday morning, the USS Minnesota ...