USS Trepang (SS 412) Battle Flag

American submarines played a crucial role in the Pacific theatre during World War II. Most U.S. submarines served in the Pacific, patrolling and hunting enemy ships. Between December 1941, when the United States entered World War II, and September 1945, when Japan...

Submarine “Dolphins”

Can you think of a symbol that has immediate meaning for you? Maybe it’s the American flag, the logo of your favorite sports team, or your college mascot. For the men and women of the Submarine Force, it’s the submarine warfare insignia, known informally as submarine...

Submarine Rescue Chamber

The submarine rescue chamber (SRC) was developed in the early 1930s to rescue submariners from downed submarines. One was famously used in May 1939 to save 33 men trapped in sunken USS Squalus (SS-192). The Navy continues to own and operate SRCs today because their...

Trieste II (DSV-1)

Trieste II (DSV-1) was the first deep submergence vehicle (DSV) built by the U.S. Navy and the successor to the original Trieste bathyscaphe. Trieste II performed undersea research and tasks, including examining the remains of USS Scorpion in 1969. Information...