Battle of Mount Ortigara
1917 CE.
Shown on the map at 46.010°, 11.522°.
The Battle of Mount Ortigara was fought from 10 to 25 June 1917 between the Italian and Austro-Hungarian armies for possession of Mount Ortigara, in the Asiago Plateau.
Text from the Wikipedia article Battle of Mount Ortigara, licensed CC BY-SA 4.0.