Giffard Le Quesne Martel the Head of the Military Mission to the Soviet Union. He assessed the effectiveness of the Soviet order of battle and tactics during a visit to the frontline in the Kursk-Oryol region between 11 and 19 May 1943. In his autobiography, Martel describes advising the Soviet High Command, Stavka, to allow the Germans to strike first at the Battle of Kursk. To what extent his advice affected the course of the battle is debatable since his first conference with Stavka did not occur until late May 1943 while the Soviet Western Front commander, Marshal Georgy Zhukov, had been advocating the
Battle of Kursk the salient. Red Army combat engineers laid 503,663 anti-tank mines and 439,348 anti-personnel mines, with the highest concentration in the first main defensive belt. The minefields at Kursk achieved densities of 1,700 anti-personnel and 1,500 anti-tank mines per kilometre, about four times the density used in the defence of Moscow. For example, the 6th Guards Army of the Voronezh Front, was spread out over nearly of front and was protected by 69,688 anti-tank and 64,430 anti-personnel mines in its first defensive belt with a further 20,200 anti-tank and 9,097 anti-personnel mines in its second defensive belt. Furthermore, mobile obstacle detachments