Some of the most powerful weapons in history never had to be used. Submarines have quietly reshaped warfare by doing ...

The origin of the force is dated to the April 11, 1900, purchase of the USS Holland. Today the U.S. counts nearly 70 ...

China’s firepower in Iran and the Indo-Pacific. Find out more on this edition of The Security Brief.

U.K. forces thwarted what they believe was a covert operation by Russian submarines in the country’s Exclusive Economic Zone, ...

A Massachusetts-based company is set to start production of devices that are used to ...

The Navy is canceling the troubled USS Boise submarine overhaul after costs neared $3 billion, redirecting resources to newer ...

The Russian submarine shadowed by the Swedish Gripens was transiting the Kattegat, a strategic waterway linking the Baltic ...

China is conducting a vast undersea mapping and monitoring operation across the Pacific, Indian and Arctic oceans, building detailed knowledge of marine conditions that naval experts say would be ...

A U.S. submarine recently sank an Iranian warship in one of the world’s busiest maritime corridors. Many overlooked the incident’s significance. Others misunderstood what had occurred. The IRIS Dena ...

HMS Seraph was not a typical Royal Navy submarine. Built for coastal waters and armed for normal patrol work, she instead ...

The Iran war has left Britain's armed forces exposed, heaping pressure on Prime Minister Keir Starmer to act on his promises ...

Historic submarines are surprisingly similar to those deployed by today's Navy and can provide an unprecedented look into ...