Battle of Dogger Bank
24 January 1915, Near the Dogger Bank, North Sea
British victory
Warned by codebreakers in Room 40, Beatty's battlecruisers caught Hipper's raiding squadron at dawn. In the long stern chase Blücher fell behind and was wrecked, and Seydlitz nearly blew up when a turret fire spread. Then Lion was disabled, and confused flag signals led the other British ships to finish off Blücher instead of chasing the rest, which escaped.
Read more on WikipediaRoyal Navy
47 ships, none lost
Imperial German Navy
26 ships, 1 lost
Map
Beatty sails from Rosyth 23–24 January 1915
Hipper raids towards the Dogger Bank 23–24 January 1915