The Columbia-class submarine outstrips its predecessor, the Ohio class, in many ways—but falls short in one conspicuous one.

A U.S. Navy fast-attack submarine is undergoing maintenance at an Australian base where a multinational force of nuclear-powered boats may be in position in just over a year, according to the ...

The keel was laid this week for the future USS Barb, the 31st Virginia-class nuclear-powered attack submarine, as the Navy continues to transition away from dependence on the Cold War-era Los ...

There was relief in naval circles on three continents recently when President Donald Trump insisted the U.S. is moving “full steam ahead” on the AUKUS security agreement that sends state-of-the-art ...

Submarines are a vital part of the United States Navy, but there is one in particular that stayed at sea for 727 days. Here's ...