Sixth Battle of the Isonzo
1916 CE.
Shown on the map at 45.933°, 13.616°.
The Sixth Battle of the Isonzo, better known as the Battle of Gorizia, was the most successful Italian offensive along the Soča (Isonzo) River during World War I.
Text from the Wikipedia article Battle of Gorizia (1916), licensed CC BY-SA 4.0.