15 August 1914

The first aerial dogfight of the war occurred during the Battle of Cer, which began on 15 August 1914. A Serbian aviator named Tomić encountered an Austro-Hungarian plane while performing a reconnaissance mission. The Austro-Hungarian pilot fired at Tomić with his revolver. Tomić managed to escape, and, within several weeks, all Serbian and Austro-Hungarian planes were fitted with machine-guns.