Battle of Cape Palos
1938 CE.
Shown on the map at 37.872°, 0.867°.
The Battle of Cape Palos, also known as the Second Battle of Cape Palos, was the biggest naval battle of the Spanish Civil War, fought on the night of March 5–6, 1938, east of Cape Palos near Cartagena, Spain.
Text from the Wikipedia article Battle of Cape Palos (1938), licensed CC BY-SA 4.0.