Battle of Kursk were mostly behind Army Group North and Army Group Centre. In June 1943, partisans operating in the occupied area behind Army Group Centre destroyed 298 locomotives, 1,222 railway wagons and 44 bridges, and in the Kursk sector there were 1,092 partisan attacks on railways. These attacks delayed the build-up of German supplies and equipment, and required the diversion of German troops to suppress the partisans, delaying their training for the offensive. Central Partisan Headquarters coordinated many of these attacks. In June Soviet Air Forces (VVS) flew over 800 sorties at night to resupply the partisan groups operating behind Army Group
Kursk submarine disaster Kursk submarine disaster The sinking of the nuclear-powered "Kursk" (Russian: ), took place during the first major Russian naval exercise in more than ten years, in the Barents Sea on 12 August 2000, killing all 118 personnel on board. The Russian government and navy came under intense criticism over the incident. Nearby ships registered the initial explosion and a second, much larger, explosion which registered 4.2 on the Richter scale on seismographs as far away as Alaska, yet the Russian Navy did not realise that the sub had sunk and did not initiate a search for more than six hours,