Second Battle of Dover Strait
1917 CE.
Shown on the map at 51.017°, 1.483°.
The Second Battle of Dover Strait was a naval battle of the First World War, fought in the Dover Strait in April 1917 (not the Battle of Dover Strait of 1916). Two Royal Navy destroyers defeated a superior force of German Kaiserliche Marine torpedo boats. Two German torpedo boats were sunk and both British destroyers suffered damage.
Text from the Wikipedia article Battle of Dover Strait (1917), licensed CC BY-SA 4.0.