Action of 17 November 1917
1917 CE.
Shown on the map at 51.533°, -5.350°.
The action of 17 November 1917 was a naval battle of the First World War. The action was fought between a German U-boat and two United States Navy destroyers in the North Atlantic Ocean.
Text from the Wikipedia article Action of 17 November 1917, licensed CC BY-SA 4.0.