Fifth Battle of the Isonzo
1916 CE.
Shown on the map at 46.078°, 13.634°.
The Fifth Battle of the Isonzo was fought from 9 to 15 March 1916 between the armies of the Kingdom of Italy and those of Austria-Hungary. The Italians had decided to launch another offensive on the Soča (Isonzo) River.
Text from the Wikipedia article Fifth Battle of the Isonzo, licensed CC BY-SA 4.0.