Authors: Institute for the Study of War
Date: September 10, 2026
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Deepest Long-Range Ukrainian Drone Strike
Ukrainian forces conducted their deepest long-range drone strike thus far in the war, striking one of Russia's largest gas complexes nearly 3,000 kilometers from the Ukrainian border. The Ukrainian General Staff and Special Operations Forces (SSO) reported on September 9 that Ukrainian forces struck the Novy Urengoy Gas Condensate Treatment Plant and the Purovsky Gas Processing Plant in Yamalo-Nenets Autonomous Okrug (roughly 2,840 and 2,780 kilometers from the Ukrainian border respectively) — Ukraine's farthest strikes thus far in the war. The SSO noted that the Novy Urengoy Gas Condensate Treatment Plant's annual capacity is 19.5 million tons, and the Purovsky Gas Processing Plant's annual capacity is 13.4 million tons.
Russia has long sought to establish and control the Northern Sea Route to cement Russia's position in the Arctic Sea and use it as an alternative shipping route amidst Ukraine's long-range strike campaign against Russian port infrastructure in the Black and Baltic seas. The strike against targets in Yamalo-Nenets Autonomous Okrug demonstrates Ukraine's ability to conduct long-range strikes against Russian energy infrastructure throughout all of European Russia and from the Norwegian border to beyond the Urals, exploiting Russia's lack of air defenses to cover its vast territory.
Ideological Posturing and Protracted War Messaging
United Russia Party Chairperson and Russian Security Council Deputy Chairperson Dmitry Medvedev formally articulated United Russia's commitment to supporting a protracted war in Ukraine and solidified the party's pro-war stance as part of Russia's informal state ideology. Medvedev emphasized in a September 10 interview to Russian newspaper Vedomosti Russia's commitment to the war in Ukraine, to the long-term militarization of Russian society, and to demands for increased economic sacrifices by Russian society. Medvedev outlined the need for Russian society to remain on a permanent war footing even after the war in Ukraine ends. Medvedev indicated that the post-war Russian defense industry should reorient toward stockpiling weapons to repel the supposedly existential threat to Russia posed by NATO and US allies in the Pacific. Medvedev attempted to justify increased tax burdens and obfuscated the Kremlin's condition setting efforts for the nationalization of private enterprises by claiming that current challenges justify state intervention in the economy. Medvedev also denied that Russia will conduct a mobilization, despite growing indications that the Kremlin is setting conditions for mobilization following the September State Duma elections.
Russian President Vladimir Putin described the United Russia Party as the war party tasked with executing Putin's ideological aims on August 22. Medvedev is using his position as the United Russia Chairperson to reaffirm the United Russia Party's pro-war platform and to position the party as the leader of a pro-war and ultranationalist informal Russian state ideology. The Kremlin has continuously worked to militarize Russian society through youth militarization, militarized education, and Russia's Time of Heroes program, which places veterans of the war in Ukraine in government positions throughout Russia and in occupied Ukraine. United Russia's posturing as the sole executor of Putin's policies defending Russia against a supposedly hostile global encirclement is similar to one of the roles in which the Communist Party cast itself in the Soviet Union. This posturing supports the Kremlin's efforts to centralize power, silence dissent, and set conditions to demand greater social sacrifices from the Russian public to support war in Ukraine and beyond.
Moldovan Airspace Drone Incident
A Russian drone entered Moldovan airspace as Ukrainian President Volodymyr Zelensky's plane was preparing for takeoff at the Chisinau Airport, Moldova on September 9. Norwegian Prime Minister Jonas Gahr Støre stated on September 9 that a drone “nearly struck” Zelensky's plane as it prepared to depart the Chisinau Airport, Moldova. A Moldovan government spokesperson stated that Moldovan authorities closed the country's airspace due to a drone threat, delaying Zelensky's takeoff. Moldovan authorities allowed Zelensky's plane to take off after confirming that the drone had crashed roughly 160 kilometers from the airport. The Moldovan Ministry of Defense (MoD) reported on September 10 that Moldovan authorities later identified the downed drone as a Russian Shahed-type strike drone. A source within Zelensky's administration told Agence France-Presse (AFP) on September 10 that Støre “exaggerated” the drone risk.
Security Concerns on the Polish Border
Polish Prime Minister Donald Tusk stated on September 10 that Polish and Ukrainian security services prevented an unspecified direct threat against a Polish-Ukrainian border crossing overnight. Tusk noted that Poland expects further Russian provocations at Polish border crossings with Ukraine. Tusk added that Poland and Europe must prepare for “various scenarios” on Europe's eastern flank.
Key Takeaways
Ukrainian forces conducted their deepest long-range drone strike thus far in the war, striking one of Russia's largest gas complexes nearly 3,000 kilometers from the Ukrainian border.
United Russia Party Chairperson and Russian Security Council Deputy Chairperson Dmitry Medvedev formally articulated United Russia's commitment to supporting a protracted war in Ukraine and solidified the party's pro-war stance as part of Russia's informal state ideology.
A Russian drone entered Moldovan airspace as Ukrainian President Volodymyr Zelensky's plane was preparing for takeoff at the Chisinau Airport, Moldova on September 9.
Polish Prime Minister Donald Tusk stated on September 10 that Polish and Ukrainian security services prevented an unspecified direct threat against a Polish-Ukrainian border crossing overnight.
Ukrainian forces struck Russian ports along the Black and Caspian Sea coasts on the night of September 9 to 10.
Russia launched 149 drones against Ukraine overnight.
Neither Russian nor Ukrainian forces advanced on September 10.
Ukrainian Operations in the Russian Federation
Maritime & Coastal Strikes
Ukrainian forces struck Russian ports along the Black and Caspian Sea coasts on the night of September 9 to 10. An explosion caused a series of fires at the Port of Sochi, Krasnodar Krai (roughly 310 kilometers from the frontline), following reported Ukrainian unmanned surface vehicle (USV) strikes against the port based on geolocated footage published on September 9. Russian and local authorities acknowledged on September 10 that Ukrainian USVs struck Sochi, causing a fire at the city's embankment. The nautical distance between Sochi and the Ukraine-controlled Black Sea coast is approximately 820 kilometers.
Ukrainian officials reported on September 10 that Ukrainian forces struck the Makhachkala Sea Trade Port in the Dagestan Republic (roughly 810 kilometers from the international border), which is the only Russian deep, warm-water port on the Caspian Sea coast and an important transport and logistics hub. A fire broke out at the port following the Ukrainian strike according to geolocated footage published on September 10. Acting Dagestan Republic Head Fyodor Shchukin acknowledged on September 10 that a Ukrainian drone strike caused a fire at the port.
Battle Damage Assessments
Open sources provided updated battle damage assessments of recent Ukrainian strikes against Krasnodar Krai and Leningrad Oblast:
Novorossiysk Naval Base: The Ukrainian General Staff confirmed on September 10 that Ukraine's September 9 strike against a naval base in Novorossiysk, Krasnodar Krai (roughly 343 kilometers from the frontline), damaged the Project 11711 Petr Morgunov landing ship, the Zheleznyakov naval minesweeper, and the Project 11356 Admiral Essen frigate. Satellite imagery captured on September 10 shows additional damage to the Project 11356R Admiral Makarov frigate and a Project 21631 Buryan-M corvette that reportedly recently launched a cruise missile strike against Kyiv City.
Kirishi Oil Refinery: Satellite imagery captured on September 10 indicates that Ukraine's August 30 strike against the Kirishi Oil Refinery, Leningrad Oblast (roughly 790 kilometers from the international border), damaged ELOU-AT-1 and ELOU-AT-6 primary oil processing units, LCh/24/9 and LCh/24/10 diesel hydrotreating units, and an LG-35/8-300B catalytic reforming unit, reportedly decommissioning 12 million tons (or roughly 60 percent) of the refinery's processing capacity.
Monthly Campaign Review
Ukraine continued to intensify its strike campaign against Russia and occupied Ukraine to degrade Russia's air defense, logistics, and strike capabilities in August 2026. The Ukrainian Ministry of Defense (MoD) reported on September 10 that Ukrainian forces struck 17 pieces of Russian air defense equipment, six bridges, more than 20 material and technical warehouses, and more than 30 drone control, storage, and launch points in Russia and occupied Ukraine in August 2026.
Impact on Domestic Logistics
Russian online retailers are primarily storing goods in independent warehouses due to Ukraine's ongoing strike campaign against online marketplace logistics facilities. Russian business newspaper Kommersant reported on September 10 that the share of Wildberries retailers using their own independent warehouses to store and ship goods nearly doubled to 97.4 percent since July 2026, and increased from 63.3 percent to 73.1 percent for Ozon retailers. Kommersant noted that the proportion of retailers storing their products at marketplace warehouses conversely decreased to 62.8 percent from 94.9 percent at Wildberries and from 73.1 percent to 66.6 percent at Ozon since July 2026. Ukrainian strikes against Wildberries and Ozon logistics and storage facilities in late July and August 2026 have significantly degraded Russia's defense industrial base (DIB) and dual-use logistics network while imposing costs on Russian retailers and businesses who face lost and damaged goods.
Frontline & Regional Updates
Russian Supporting Effort: Northern Axis
Objective: Create defensible buffer zones in Sumy Oblast along the international border.
Russian forces continued offensive operations in northern Sumy Oblast on September 9 to 10 but did not advance as Ukrainian forces counterattacked in the area. Russian milbloggers claimed that Ukrainian forces counterattacked near Yunakivka and Mohrytsia (both northeast of Sumy City).
Ukrainian forces continued their frontline and intermediate-range strike campaign against Russian military assets in Bryansk Oblast. The Ukrainian General Staff reported on September 10 that Ukrainian forces struck two Russian positions/assets in the area.
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