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
Kursk municipal division, the city of oblast significance of Kursk is incorporated as Kursk Urban Okrug. In addition to its importance as an administrative hub, Kursk is important as an industrial centre. Activity focuses on iron based industry, the chemical sector and a large food processing industry, reflecting the richness of agriculture in the surrounding "Black Earth" region. Particularly noteworthy is the so-called Kursk Magnetic Anomaly "(Russian: Курская магнитная аномалия)", the world's largest known iron-ore reserve, where the iron content of the ore ranges from 35% up to 60%. In Kurchatov, some to the south-west, is the Kursk Nuclear Power Plant,