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 ...

anyone speaking German would call a submarine an unterseeboot, or they may just call them U-boats. Still, that is usually used these days to refer to subs from WWI and WWII, and there aren't many ...

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 ...

A man bought a World War I shipwreck for £300 after he saw it advertised on Facebook Marketplace. The catch? It's in the sea ...

Dom's ship was a steam-powered cargo ship which sank on November 27 1917. It was sunk by a German submarine off the coast of Cornwall, and has remained there ever since. The ship would have ...

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 ...