CASUALTY RECORD // October 23, 1912
Battle of Kumanovo
Estimated casualties — killed, wounded, captured, and missing — by side, with confidence labels per surviving record.
Casualties by side
2 sides catalogued · combined 4,480 estimated
Kingdom of Serbia
3,280
Medium-confidence figure
Ottoman Empire
1,200
Medium-confidence figure
Battle context
The Battle of Kumanovo on 23–24 October 1912 was one of the first major engagements of the First Balkan War, fought shortly after hostilities opened. The Serbian victory, achieved with a force roughly double the size of the Ottoman contingent, broke Ottoman resistance in the Kosovo Vilayet. Following the defeat, the Ottoman army abandoned the greater part of the region and sustained heavy losses in both manpower and war materiel. The battle thus accelerated the collapse of Ottoman control across a strategically significant zone and opened the interior of the Balkan Peninsula to further Serbian advances during the campaign.
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