That illusion was shattered on November 13, 1941, when young U-boat commander Friedrich Guggenberger identified and targeted her off the Spanish coast. A single torpedo delivered a devastating ...

Cmdr. Brett Robblee and Command Master Chief Felix Phillips were relieved from leadership of Maritime Expeditionary Security ...

When German U-boat Commander Walther Schwieger ordered a torpedo strike on the Lusitania, he didn't know it would be the shot that eventually led the U.S. into WWI. But it wasn't a mistake ...

In 1940, German U-boat commander Otto Kretschmer's submarine was under siege for hours and his crew grew tremendously stressed. In order to preserve oxygen, they had to find ways to stay calm.