In September 1914, a single German U-boat ventured into the North Sea. Lieutenant Otto Weddigen’s U-9 slipped past patrols ...

FALKLAND ISLANDS - The wreck of an armored German battlecruiser used during World War I has been discovered off the Falkland Islands, the Falklands Maritime Heritage Trust announced on Thursday, ...

A shipwreck discovered off the coast of Scotland was confirmed to be a British cruiser sunk by a torpedo during World War I, ...

In this work Dunn, author of Securing the Narrow Sea: The Dover Patrol 1914-1918 and other books on the Royal Navy from late-Victorian times through the First World War, tackles several different but ...

A new exhibit to explore how USS San Diego sank — the only World War I vessel to sink during the war — has opened at the National Museum of the U.S. Navy in Washington, D.C. The lives of six Navy ...

This Jan. 28, 1915 photo shows the armored cruiser San Diego while serving as flagship of the Pacific Fleet. On a clear summer day, July 19, 1918, an external explosion near the ship’s engine room ...

The utility that submarines showed during World War I prompted navies to build many variants. One was cruiser submarines, which relied on large deck guns as much as they did on torpedoes. Navies ...