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
Battle of Alam el Halfa to the Axis was not just a tactical defeat and retreat. With the Alam Halfa failure, Rommel was deprived not only of the operational ability to initiate offensives, he lost the operational and tactical ability to defend the German base in Africa. Axis strategic aims in the African theatre were no longer possible. After Rommel's failed attempt to break through during the First Battle of El Alamein and the counterattacks by the Eighth Army, under General Sir Claude Auchinleck, during July 1942, both sides were exhausted. They dug in to rebuild their strength. At Alamein, Rommel's supply position was precarious.