In September 1914, a single German U-boat ventured into the North Sea. Lieutenant Otto Weddigen’s U-9 slipped past patrols ...

A nuclear attack submarine may be the most formidable predator ever built. In 2009, I spent a week submerged aboard the USS ...

A single torpedo salvo from I-19, often called one of the most damaging in submarine warfare history, singlehandedly crippled an entire carrier task force. Commissioned in the early days of World War ...

In the midst of the Falklands War, British sailors hunting for ARA San Luis launched ordnance at the sonar and radar signals of whales, wrecks, and even flocks of seagulls — anything that might have ...

Torsk (SS-423) departing the Portsmouth Naval Shipyard, August 1965. (Navy) A United States Navy submarine sank an Iranian ship with a single torpedo this week as the frigate was transiting the Indian ...

The March 4 incident in the Indian Ocean marked the first time an American submarine had torpedoed an enemy vessel since the last days of World War II.

The USS Massachusetts (SSN 798), the 25th Virginia-class submarine, has officially joined the US Navy. Commissioned in Boston ...

Because of the specialized nature of submarines, a distinct military strategy called anti-submarine warfare, or ASW, was created to counter them. Its primary objective is to defend ships and allied ...

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