Ottoman military campaign lasted for a mere 3 weeks from 20 July 1913 to 10 August 1913. According to Carnegie Commission 15.960 Bulgarians were "either killed burned in the houses or scattered among the mountains" and several thousands more were massacred in Western Thrace within this period. There were also Bulgarians in Anatolia concentrated around Marmara Region.
The Ottoman military operation lasted for a short duration from July 20, 1913 to August 10, 1913. The Carnegie Commission documented that approximately 15,960 Bulgarians were "killed, burned in their homes, or dispersed into the mountains" and several thousands more were massacred in Western Thrace during this time. There were also Bulgarian civilians concentrated around the Marmara Region in Anatolia.