Land mine invention by the Polish officer Józef Kosacki. His invention, known as the Polish mine detector, was used by the Allies alongside mechanical methods, to clear the German mine fields during the Second Battle of El Alamein when 500 units were shipped to Field Marshal Montgomery's Eighth Army. The Nazis used captured civilians who were chased across minefields to detonate the explosives. According to Laurence Rees "Curt von Gottberg, the SS-Obergruppenführer who, during 1943, conducted another huge anti-partisan action called Operation Kottbus on the eastern border of Belarus, reported that 'approximately two to three thousand local people were blown up in
First Battle of El Alamein constantly in short supply, while a shortage of transport impeded the distribution of the supplies that the Axis forces did have. Rommel's plan was for the 90th Light Division and the 15th and 21st "Panzer" divisions of the "Afrika Korps" to penetrate the Eighth Army lines between the Alamein box and Deir el Abyad (which he believed was defended). The 90th Light Division was then to veer north to cut the coastal road and trap the defenders of the Alamein box (which Rommel thought was occupied by the remains of the 50th Infantry Division) and the "Afrika Korps" would veer