How a US submarine torpedoed an Iranian frigate for first time since WWII during Iran strikes

The March 4 incident in the Indian Ocean marked the first time an American submarine had torpedoed an enemy vessel since the ...

A US Navy submarine sank an enemy warship with a torpedo for the first time since World War II. Here's the video.

Secretary of Defense Pete Hegseth called the sinking of an Iranian warship with a single Mk48 torpedo a "quiet death." ...

4 former Argentine navy officers face trial for 2017 submarine sinking that killed 44 crew members

Four former Argentine navy officers are on trial for the 2017 sinking of the ARA San Juan, which killed 44 crew members.
Sub Brief on MSN

The lost submarine that kept sending signals from the deep

The loss of the USS Thresher in 1963 remains one of the most tragic submarine disasters in U.S. Navy history. Newly released documents reveal that search crews may have detected multiple sonar pings ...
Look in The Past on MSN

The day the US Navy proved no crew would be left behind and attempted the impossible

During World War II, submarines operated in some of the most dangerous conditions imaginable. In one dramatic incident in the Pacific, a U.S. submarine crew found themselves trapped after a serious ...