Battle of Nambanje
1917 CE.
Shown on the map at -8.709°, 38.600°.
The Battle of Nambanje was a minor engagement between British and German colonial forces during the East African Campaign of World War I. It involved the 1st East African Division and took place on 13 March 1917. Several British units were ordered to attack German forces that had been spotted near Nambanje. The British advance was detected by the Germans the day before, which enabled them to prepare and repulse the attack.
Text from the Wikipedia article Battle of Nambanje, licensed CC BY-SA 4.0.