Battle of Karánsebes »
The Battle of Karánsebes was an early episode in the Austro-Turkish War and was “fought” on 17 September 1788. Different portions of an Austrian army, which was scouting for forces of the Ottoman Empire, fired on each other by mistake, in a self-inflicted disaster. Two days later, the Ottoman army arrived. They discovered 10,000 dead and wounded soldiers. (via defrost)