Germany's U-505 submarine was the 1st warship captured by the US Navy in over a century and top secret during World War II.

Vanguard-class submarines form a central part of Great ... Indeed, even though the submarine was operating within its depth capability, every additional meter underwater heightened the risk ...

The incident on board the unnamed Vanguard class submarine ... The paper said the submarine was still within its limits for operating safely but was diving towards its "crush depth" before ...

The Dreadnought submarines will eventually replace the Vanguard-class vessels that currently carry out the navy's continuous at sea deterrent (CASD) operations. Image: HMS Vanguard at HMNB Clyde.

The system includes four nuclear-powered Vanguard-class submarines ... of a Colt "peacemaker" pistol. Locked inside a safe on each of the submarines is a "letter of last resort" from the prime ...

A treasure trove of vital German intelligence, the submarine's capture was top-secret. See inside the U-boat ... the U-505 was one of the German navy's Type IX-class submarines, a long-range attack ...