They knew that at any moment, German U-boats could descend upon them. Disaster struck at 4:15 p.m. The German UB-64 launched a torpedo that hit the vessel's starboard side and caused an explosion.

Germany changed the tactic during WWI via unrestricted submarine warfare, which meant that German U-boats could attack without warning any vessel it came across. Germany sank the civilian vessel ...

listening in on German U-boats. Plain language traffic was translated and passed on to the navy. But coded signals went directly to Bletchley Park, where mathematicians and analysts developed ...

UC-97 became probably the only German submarine sunk within the continental United States. One of five U-boats turned over to the U.S. Navy for post-war study, she toured the Great Lakes as part ...

Did you know? Winston Churchill claimed that the 'U-boat peril' was the only thing that ever really frightened him during WWII. This was when German submarines attacked the Atlantic lifeline to ...

Joining up at the start of the war, London-born Mr Barnes went on to serve for 23 years and said sinking a German U-boat was his biggest contribution to the war effort. Having joined up as a naval ...

Work is underway to extract oil from a British tanker sunk by a German U-boat off Long Island during World War II. A team has been at the site of the tanker, named Coimbra, since April 29 and has ...

The sinking of the passenger liner Lusitania by a German U-boat helped to shatter that hope. Woodrow Wilson, 1918. Courtesy: Library of Congress Wilson demanded an apology from Germany and ...

U-boats were very vulnerable ... did its awesome threat actually save lives? WW1: Why was the first German defeat in Africa? documentWW1: Why was the first German defeat in Africa?

On May 7, 1915, a German U-boat sank the British liner Lusitania off the coast of Ireland, killing nearly 1,200 people.