Following the Yugoslav coup d'état on 27 March 1941, Hitler considered this act to be a personal insult and called for the immediate destruction of Yugoslavia via Führer Directive 25. Commencing on 6 April 1941, Führer Directive 25 was enacted with a large scale bombing of Belgrade occurring in the early hours of the invasion. Indiscriminate bombing of civilian targets lead to the deaths of between 1,500 and 17,000 civilians. Following the end of the war, "Generaloberst" Alexander Löhr was found guilty of war crimes including his part in the bombing of Belgrade. He was executed in 1948.