Battle of Kumanovo
1912 CE.
Shown on the map at 42.136°, 21.718°.
The Battle of Kumanovo (Serbian: Кумановска битка / Kumanovska bitka, Turkish: Kumanova Muharebesi), on 23–24 October 1912, was a major battle of the First Balkan War. It was an important Serbian victory over the Ottoman army in the Kosovo Vilayet, shortly after the outbreak of the war. After this defeat, the Ottoman army abandoned the major part of the region, suffering heavy losses in manpower (mostly due to desertions) and in war materiel.
Text from the Wikipedia article Battle of Kumanovo, licensed CC BY-SA 4.0.