Kursk Oblast established. The latter subdivision existed until 1928, when the territory of Kursk Governorate became a part of Central Black Earth Oblast. As Central Chernozem Oblast was very large its administration was very difficult, on June 13, 1934 it was divided into two oblasts: Kursk Oblast and Voronezh Oblast. In the period between 1934 and 1954, oblasts' borders were frequently adjusted. However, the area and borders of the oblast have remained stable from 1954. During World War II, the territory of Kursk Oblast was occupied by the German troops from fall of 1941 until summer of 1943. The Battle of Kursk,
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