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 panzer forces would move through and advance towards Kursk. Jan Möschen, a major in Model's staff, later commented that Model expected a breakthrough on the second day. If a breakthrough did occur the briefest delay in bringing up the panzer divisions would give the Red Army time to react. His corps commanders thought a breakthrough extremely unlikely. Following a preliminary bombardment and Red Army counter bombardments, the 9th Army opened its attack at 05:30 on 5 July. Nine infantry divisions and one panzer division, with attached assault guns, heavy tanks and tank destroyers, pushed forward. Two companies of Tiger tanks