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

HII supplies the Virginia-class submarine Massachusetts to the U.S. Navy, underscoring its role as a key builder of advanced nuclear-powered vessels.

The Seawolf-class nuclear attack submarine was supposed to be the backbone of a new undersea fleet, a 29-boat answer to ...

Russia’s Kilo-class and Yasen-class submarines are likely considered as a massive, high-tech threat by the Pentagon and China’s growing fleet of Jin-class ballistic missile submarines are acquiring ...

(CNN) — US President Donald Trump said Friday he was ordering two US Navy nuclear submarines to “appropriate regions,” in response to remarks by Dmitry Medvedev, Russia’s former president and current ...

According to the GAO, maintenance crews often face delays that stretch to months waiting for components, forcing them to strip other assets.