Battle of Kursk the total size of the Soviet force was 1,910,361 men, with 1,426,352 actual combat soldiers. Soviet armour strength included 4,869 tanks (including 205 KV-1s heavy tank) and 259 SPGs (including 25 SU-152s, 56 SU-122s and 67 SU-76s) Overall a third of the Soviet tanks at Kursk were light tanks, but in some units this proportion was considerably higher. Of the 3,600 tanks in the Central and Voronezh Fronts in July 1943, 1,061 were light as T-60 and T-70. With very thin armor and small gun, they were unable to effectively engage the frontal armour of German medium and heavy tanks
Battle of Kursk of powerful Soviet concentrations behind the Kursk area, Hitler further delayed the offensive to allow for more equipment to reach the front. With pessimism for Citadel increasing with each delay, in June, Alfred Jodl, the Chief of Staff at the OKW, instructed the armed forces propaganda office to portray the upcoming operation as a limited counteroffensive. Due to concerns of an Allied landing in the south of France or in Italy and delays in deliveries of the new tanks, Hitler postponed again, this time to 20 June. Zeitzler was profoundly concerned with the delays, but he still supported the offensive.