Over the past several months, the war had gradually moved deep inside Russian territory. In September, Ukraine targeted depots in the Russian towns of Tikhoretsk and Toropets with drones, setting ablaze over 30,

Ukraine appears to have shifted its modus operandi for long-range strikes into Russia away from the targe sites of critical national infrastructure, such as oil and gas storage sites, to ammunition and supply depots,

Russian troops launched a large-scale missile attack on Ukraine with Iskander-M ballistic missiles, Kh-59 aircraft missiles, and drones, according to the Ukrainian Air Force. The Russian missiles were launched from the Kursk and Belgorod regions,