Battle of Kursk of the offensive. July and August 1943 saw the heaviest German ammunition expenditure on the Eastern Front up to that point, with 236,915 tons consumed in July and 254,648 in August. The previous peak had been 160,645 tons in September 1942. The Red Army used two Fronts for the defence of Kursk, and created a third front behind the battle area which was held as a reserve. The Central and Voronezh Fronts fielded 12 armies, with 711,575 men (510,983 combat soldiers) and 625,591 men (446,236 combat soldiers) respectively. In reserve, the Steppe Front had an additional 573,195 men (449,133). Thus
Battle of Kursk a small area in the immediate environs of Kursk. The combined depth of the three main defensive zones was about . The six defensive belts on either side of Kursk were deep. If the Germans managed to break through these defences they would still be confronted by additional defensive belts to the east, manned by the Steppe Front. These brought the total depth of the defences to nearly . The Voronezh and Central Fronts dug and of trenches respectively, laid out in criss-cross pattern for ease of movement. The Soviets built more than 686 bridges and about of roads in