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
Second Battle of El Alamein successful counter-offensive against the Axis Panzer Army Africa. With the Allies victorious, it was the watershed of the Western Desert Campaign. The Allied victory turned the tide in the North African Campaign and ended the Axis threat to Egypt, the Suez Canal and the Middle Eastern and Persian oil fields via North Africa. The Second Battle of El Alamein revived the morale of the Allies, being the first big success against the Axis since Operation Crusader in late 1941. The battle coincided with the Allied invasion of French North Africa in Operation Torch, which started on 8 November, the Battle