NATO estimates Russia lost over 50,000 troops in Ukraine in September; Ukraine lost about 5,000
A senior NATO military official told Bloomberg that Russia suffered more than 50,000 personnel losses in Ukraine in September, including up to 28,000 killed, while Ukrainian losses over the same period were estimated at around 5,000. The official attributed the disparity to Russian forces continuing to push troops into areas covered by Ukrainian drones, mines and artillery. Bloomberg said it could not independently verify the figures; the Kremlin does not publish data on its military losses.
Key points
- Russian losses in September exceeded 50,000 personnel, with up to 28,000 killed, according to a NATO official cited by Bloomberg.
- Ukrainian losses over the same period were estimated by the same source at about 5,000.
- The NATO official said Russian forces continue sending personnel into "kill zones" covered by Ukrainian strike drones, mines and artillery.
- Bloomberg reported the figures on condition of anonymity and said it could not independently verify them.
- In July, Deputy Head of the Office of the President of Ukraine Pavlo Palisa reported 43,000 Russian personnel killed or wounded since the start of the war — a cumulative figure lower than the September-only NATO estimate.
- The Armed Forces of Ukraine regained more than 125 square kilometers of territory during a ground offensive operation.
- Ukraine has struck deep into Russian territory, destroying oil refineries and data processing centers, raising the economic cost of the war.
Why it matters
The casualty estimates indicate an order-of-magnitude disparity in losses between the two sides and shed light on the human cost of Russia's continued offensive. Combined with reports of Ukrainian strikes on Russian oil refineries and data centers, they suggest mounting economic and military pressure on Russia. Russia's projected 2026 defense spending — approaching 17 trillion rubles (about $199 billion), roughly 40% above the plan announced at the end of 2025 — signals sustained wartime fiscal commitment. Germany's BND chief assessed that the war has trapped Putin in a political situation difficult to exit. NATO is separately preparing a rapid-response strategy for its eastern flank to be presented in Poland on October 12, and is framing Russian hybrid activities as attacks requiring calibrated, evidence-based responses.
What happened
Bloomberg, citing a senior NATO military official speaking on condition of anonymity, reported that Russia lost more than 50,000 personnel in Ukraine in September, including up to 28,000 killed. The same source estimated Ukrainian losses over the period at about 5,000. The NATO official said Russian forces continue offensive operations, sending soldiers into areas covered by Ukrainian strike drones, mines and artillery. Bloomberg noted it could not independently verify the figures; the Kremlin does not publish data on its military losses or recruitment. The estimates were carried by Ukrainian outlets ZN.UA and Ukrainska Pravda. Separately, the Armed Forces of Ukraine said they regained more than 125 square kilometers of territory during a ground offensive, and have struck deep into Russian territory, destroying oil refineries and data processing centers.
How Ukrainian sources describe it
Ukrainian outlets ZN.UA and Ukrainska Pravda centered the NATO figures but framed them alongside a July statement from Deputy Head of the Office of the President of Ukraine Pavlo Palisa, who reported 43,000 Russian personnel killed or wounded — a cumulative figure lower than the September-only NATO estimate. The coverage highlighted Ukrainian operational achievements, including retaking more than 125 square kilometers and strikes on Russian oil refineries and data centers, presenting them alongside the loss estimates to underline pressure on Russia.
Where reporting differs
Casualty figures differ between sources. A Ukrainian presidential-office official, Pavlo Palisa, reported 43,000 Russian killed or wounded as a cumulative figure in July. A NATO official cited by Bloomberg estimated over 50,000 Russian losses in September alone, including up to 28,000 killed. The two figures are not directly comparable — one is cumulative, the other monthly — but Ukrainian coverage noted the discrepancy.
Background
Russia's full-scale invasion of Ukraine, launched in February 2022, continues with no end in sight. NATO estimated in the summer that Russia had lost more than 1.4 million soldiers over the course of the war. The Kremlin does not officially publish data on military losses or recruitment numbers, making external estimates difficult to corroborate. Germany's BND chief Martin Jäger said this week that Putin's war effort has created a political situation difficult for the Russian leader to exit. NATO, meanwhile, is developing a rapid-victory strategy for a potential Russian attack on the Alliance's eastern flank, supervised by Supreme Allied Commander Europe Alexus Grinkevich and due to be presented in Poland on October 12. The plan is expected to combine ground forces with low-cost drones, minimally crewed systems and AI-based weapons. Russian defense spending in 2026 is projected to approach 17 trillion rubles (about $199 billion), roughly 40% above the initial plan announced at the end of 2025.