A senior NATO military official, speaking anonymously, told Bloomberg that Russia suffered more than 50,000 casualties in Ukraine in September 2026, with as many as 28,000 personnel killed, as Russian forces pushing offensive gains ran into Ukrainian kill zones of drones, mines and artillery. The same official put Ukrainian casualties for the month at about 5,000. The figure is single-sourced and unverified: no independent outlet has corroborated it, and NATO’s own stake in the conflict means it should be read as the alliance’s claim, not an established count.
NATO official puts Russian September casualties above 50,000
An unnamed senior NATO military official told Bloomberg that Russia suffered more than 50,000 casualties in Ukraine in September, up to 28,000 of them killed, dwarfing Ukrainian losses of about 5,000 in the same period.
Why it matters: If the NATO figure holds, September would be one of the costliest months of the war for Russia, shaping how both sides and Washington read the battlefield going into winter.
Data as of Sunday, October 11, 2026: Bloomberg article by Gerry Doyle and Andrea Palasciano opened and read in full (published 12:27 PM EDT, not paywalled). The casualty figures come from a single unnamed senior NATO military official; Bloomberg did not independently verify them and gave no comparison to earlier months or to Ukrainian-published figures. NATO is a party-adjacent source (it backs Ukraine): treat the claim as NATO's narrative until corroborated elsewhere.
Sources
- Russia Suffered 50,000 Casualties Last Month, NATO Official Says · Bloomberg · 2026-10-11