ORDER OF BATTLE // July 9, 1913
Battle of Bregalnica
Estimated force strength by side, with confidence labels per surviving record.
Forces engaged
2 sides catalogued · combined 221,000 estimated
Serbia
105,000
Medium-confidence figure
Bulgaria
116,000
Medium-confidence figure
Battle context
The Battle of Bregalnica was the largest engagement of the Second Balkan War, pitting Bulgarian forces of roughly 116,000 against a Serbian force of approximately 105,000. Combined casualties exceeded 36,000, with Bulgaria suffering around 20,000 and Serbia approximately 16,620. The scale of the fighting reflected the intensity of the conflict between former allies over the partition of Macedonia following the First Balkan War. As the defining engagement of the war, its outcome bore directly on the broader settlement that concluded the Second Balkan War and the redistribution of territorial gains among the Balkan states.
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