Zelensky noted that the Ukrainian incursion into Kursk Oblast has also impacted Russian offensive operations in Donetsk Oblast. Zelensky stated that the Ukrainian incursion "slowed" Russian advances throughout Donetsk Oblast and reduced the advantage in artillery ammunition that Russian forces in the Pokrovsk direction had over Ukrainian forces from 12-to-1 to 2.5-to-1. ISW is unable to verify Zelensky’s statement, though the rate of Russian advance in the Pokrovsk area has notably slowed since the start of September 2024. Ukraine's Main Military Intelligence Directorate (GUR) Head Lieutenant General Kyrylo Budanov stated during an interview published on September 7 that Ukraine’s incursion into Kursk Oblast complicated Russia's plans for offensive operations, including in Russia's "main direction" (likely referring to the Pokrovsk direction), in August 2024 and later this fall. ISW has recently observed indications that Russian authorities have transferred limited elements of likely Russian reserve units from Donetsk Oblast, including from the Pokrovsk direction, to Kursk Oblast to counter the Ukrainian incursion. Such limited redeployments are unlikely to have an immediate impact on the tempo of Russian offensive operations, although Russian forces may struggle to maintain their current offensive tempo into the future if Russian authorities conduct additional redeployments from reserve forces in Donetsk Oblast.