The terror bombing of Belgrade, code-named “Operation Punishment”, started on the Sunday morning of 6 April 1941 when the Dojno Polje Airport and its Air Base were bombed by German planes. During that day Belgrade suffered attack by 484 German bombers and Stukas, which dropped 360 tons of bombs. The Luftwaffe dropped all categories of bombs from small incendiaries to 1000 kg landmines. 47% of the buildings of the city were hit left totally destroyed or damaged. The JKRV flew 474 sorties but not a fighter remained available to counter the Luftwaffe. Sondermajer managed to organise for one last plane to transfer the Yugoslav government to Thessaloniki and Alexandria The bombing of Belgrade went on for three days.