Second Battle of Çatalca
1913 CE.
Shown on the map at 41.142°, 28.463°.
The Second Battle of Çatalca fought between 3 February 1913 and 3 April 1913 was a major "continuous skirmish" of the First Balkan War.
Text from the Wikipedia article Second Battle of Çatalca, licensed CC BY-SA 4.0.