The USS Iowa (SSN 797) — the Navy’s first submarine to be named after the U.S. state — was commissioned in a ceremony on Saturday at Naval Submarine Base New London in Connecticut.

The USS New Jersey has been heralded as the Navy’s first fully gender-integrated submarine following a series of changes made to the vessel.

The role of the previously unreported submarine in the Chinese navy, which is the world's largest by hull count, remains unclear.

The USS New Jersey was the first submarine in the U.S. Navy's fleet designed specifically with women in mind.

Navy's next-generation SSN(X) attack submarine faces delays until 2040, with costs projected between $6.7-8 billion per vessel compared to $4 billion Virginia-class submarines.

The fast-attack submarine USS Indiana arrived at its new homeport in Pearl Harbor, Hawaii.

A US Navy nuclear-powered attack submarine stopped in Iceland for the first time on Wednesday. A top admiral told Business Insider the unprecedented port call sent a message to American foes.

USS Toledo supports missions, such as anti-submarine and strike warfare, as well as intelligence, surveillance and reconnaissance.

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