Evidence-Graded Timeline · Conflict & Attrition
Russia-Ukraine War: Claimed Losses on Both Sides
A wartime casualty record is always a battleground. This paper collects what each party claims, what open-source investigators have verified, and what Western analysts estimate — without adjudicating between them.
Cite this paper
Kessler, Nora. "Russia-Ukraine War: Claimed Losses on Both Sides." Zero Agenda News, June 15, 2026. https://zeroagendanews.com/papers/2026/06/russia-ukraine-war-losses/.
Kessler, N. (2026, June 15). Russia-Ukraine War: Claimed Losses on Both Sides. Zero Agenda News. https://zeroagendanews.com/papers/2026/06/russia-ukraine-war-losses/
@misc{zan2026russiaukrainewar,
author = {Nora Kessler},
title = {Russia-Ukraine War: Claimed Losses on Both Sides},
year = {2026},
publisher = {Zero Agenda News},
url = {https://zeroagendanews.com/papers/2026/06/russia-ukraine-war-losses/}
}
Most reporting gives you conclusions without evidence, or evidence without structure. An evidence-graded timeline separates what is documented from what is inferred from what is argued — every entry carries a confidence label and cites its sources. You can read the conclusion and trust the label, or drill into every source yourself.
How this works →TL;DR
Every casualty figure in this war is contested — the table below maps what each source claims; all figures are conjecture unless otherwise noted.
| Source | As of / Notes | Russian losses | Ukrainian losses |
|---|---|---|---|
| Russia official (Sept 2022) | Sept 2022; Shoigu; last official Russian figure | 5,937 killed | 61,207 killed + 49,368 wounded |
| Russia official (Dec 2024) | Dec 2024; unverified Russian government claim | — | ~1,000,000 k+w (claimed) |
| Kremlin internal (claimed) | 2024; via Ukrainian intelligence, unverified | ~1.315m k+w | — |
| Ukraine General Staff | Late 2025; combines k, w, PoW, missing | ~1.2m total | — |
| Zelensky (Feb 2025) | Feb 2025; first presidential disclosure | — | 46,000 killed; 380,000 wounded |
| Zelensky (Feb 2026) | Feb 2026; updated official figure | — | 55,000 killed |
| Mediazona / BBC | May 2026; verified names + probate model | 221,206–352,000 dead | — |
| UK MoD | Oct 2025; intelligence estimate | ~1.118m k+w | — |
| CSIS | June 2025; analytical model | ~1.2m total | 500–600k total; 60–140k killed |
| Oryx (equipment) | 2025; each entry photographic evidence | thousands confirmed destroyed | thousands confirmed destroyed |
| UN OHCHR | Apr 2026; only field-verified figure | — | 15,850 civilians killed |
Cost-efficiency (2025):
- Russia gained ~4,300–4,800 km² — largest annual gain since the opening weeks — at an estimated 1,000+ casualties/day
- ~65–80 personnel lost per km² seized (killed, wounded, and missing)
- Ukraine General Staff claims 5:1 loss ratio in Ukraine's favour; Western analysts estimate 2:1–2.5:1; Russia publishes no ratio
The only independently verified figure:
- UN OHCHR: 15,850 Ukrainian civilians killed, 44,809 injured as of April 2026 — acknowledged as a floor, not a total
Filter by confidence — Google · LinkedIn
Phase 1 · Official Claims and the Start of the Count (February–December 2022)
Ukraine's General Staff begins publishing daily estimates of Russian military losses¶
From February 24, 2022, Ukraine's General Staff began issuing daily cumulative tallies of claimed Russian military losses across categories: personnel, tanks, armoured vehicles, artillery systems, aircraft, helicopters, and naval vessels. The methodology for the personnel count has never been publicly disclosed, and no independent auditor has had access to the underlying data. The format presents a single aggregate figure combining killed, wounded, captured, and missing without distinguishing between categories.
Russia's MoD publishes its first official Russian casualty figure: 1,351 killed¶
On March 25, 2022 — one month into the full-scale invasion — Russia's Ministry of Defence stated that 1,351 Russian servicemen had been killed and 3,825 wounded. This was the only official Russian disclosure of Russian military deaths prior to September 2022. At the same briefing, the ministry claimed 14,000 Ukrainian soldiers had been killed. No independent verification of either figure was possible.
Shoigu claims 5,937 Russian killed and 61,207 Ukrainians killed — then Russia goes silent on its own losses¶
On September 21, 2022, Russian Defence Minister Sergei Shoigu stated in a televised interview that 5,937 Russian servicemen had been killed, adding that nearly 90 percent of the wounded had returned to combat duty. In the same interview, Shoigu claimed 61,207 Ukrainian soldiers had been killed and 49,368 wounded. This was the last occasion on which Russia's government published an official figure for Russian military deaths; no updated Russian official figure has been released since.
Mediazona and BBC News Russian launch a named open-source verification project for Russian deaths¶
Mediazona and BBC News Russian established a joint project to count Russian military deaths individually, using open sources: social media obituaries, regional news reports, official government registries, and burial site documentation. A death was recorded only when confirmed by at least one independently verifiable record. The project explicitly described its count as a verified floor — not a total — acknowledging that a large share of deaths would leave no traceable open-source footprint, particularly from remote regions with low digital presence.
Phase 2 · Competing Tallies Diverge (2023–2024)
Ukraine's General Staff cumulative Russian loss claims pass 200,000; methodology scrutiny intensifies¶
By 2023, Ukraine's General Staff cumulative figures for Russian "combat losses" had passed 200,000 personnel — far exceeding any contemporaneous Western intelligence estimate. Analysts noted that the Ukrainian aggregate combined killed, wounded, captured, and missing, preventing direct comparison with estimates that distinguished between categories. The figures were widely cited in Western media but treated with caution by independent military analysts, who noted the absence of any published methodology and the Ukrainian government's direct interest in the numbers.
Western governments and think tanks begin publishing their own casualty estimates¶
From 2023, Western governments and policy institutions began issuing their own estimates, drawing on signals intelligence, satellite imagery, and open-source data. The UK Ministry of Defence published weekly intelligence updates indicating Russian casualties in the hundreds of thousands of killed and wounded combined. The Center for Strategic and International Studies (CSIS) produced analysis combining open-source tracking with historical attrition modelling. No Western institution claimed direct access to Russian casualty records; all estimates rested on inference, and they varied significantly from one another.
Center for Strategic and International Studies (CSIS) · Russia Matters (Harvard Kennedy School)
Leaked US intelligence documents give the first public view of American casualty estimates¶
In April 2023, classified US intelligence documents were leaked by Air National Guard airman Jack Teixeira and reported by major Western news outlets. Among them were internal US assessments estimating Russian battlefield casualties in the range of roughly 189,000–223,000 (killed, wounded, and missing) as of early 2023, alongside Ukrainian casualties of approximately 124,500–131,000. These were classified analytical products, not primary counts, and substantially exceeded Russian official figures while falling below Ukraine's General Staff totals for the same period. The leak provided the first public window into how US intelligence was independently assessing the war's toll.
Russia claims Ukraine has suffered close to one million casualties; denies scale of its own losses¶
Throughout 2024, Russian officials consistently denied that Russian losses had approached the figures cited by Western analysts. By December 2024, Russian authorities claimed Ukraine had suffered close to one million military casualties — killed and wounded — since February 2022, a figure not independently verifiable. Russia's ambassador to the UK separately declined to state Russian casualty figures while acknowledging approximately 600,000 Russian troops were then deployed in Ukraine.
Ukrainian intelligence claims Kremlin's own internal assessment puts Russian casualties at 1.315 million¶
Ukraine's military intelligence directorate (HUR) claimed to have obtained Kremlin internal documents estimating Russian casualties at 1,315,000 killed and wounded since February 2022. President Zelensky cited the figure publicly, stating Ukraine believed even these internal Russian numbers were understated. The documents were not independently verified and their authenticity cannot be confirmed through open sources. If accurate, Russia's own internal accounting would exceed UK MoD and CSIS estimates — and approach Ukraine's General Staff totals.
Phase 3 · The Scale of Attrition Becomes Visible (2025–2026)
Zelensky publicly discloses Ukrainian military casualties for the first time: 46,000 killed, 380,000 wounded¶
In February 2025, President Zelensky stated that more than 46,000 Ukrainian soldiers had been killed since February 2022, with approximately 380,000 wounded — the first presidential disclosure of Ukrainian military casualty numbers since the invasion began. Zelensky also noted tens of thousands more were missing or in captivity. Western analysts including CSIS estimated Ukrainian military deaths at between 60,000 and 100,000, substantially above the official figure.
Russia gains ~4,300–4,800 km² — its largest annual advance since 2022 — at an estimated 1,000 casualties per day¶
In 2025, Russian forces captured approximately 4,300–4,800 square kilometres of Ukrainian territory, the most in a single calendar year since the opening weeks of the invasion, though far below the 60,000+ km² seized in early 2022. Ukraine's General Staff simultaneously reported average daily Russian personnel losses exceeding 1,000 for much of the year — a figure not independently verifiable. If those figures are accepted as approximate, Russia sustained roughly 65–80 personnel casualties for every square kilometre gained in 2025, illustrating the scale of attrition warfare at which it is operating.
Oryx open-source project tracks confirmed equipment losses with photographic evidence — the most verifiable data in the conflict¶
The Oryx open-source project, run by Dutch defence analyst Stijn Mitzer, catalogued confirmed equipment losses for both sides using photographic and video evidence, with each entry individually sourced to verifiable imagery. By 2025, Oryx had documented the confirmed destruction, abandonment, or capture of thousands of Russian and Ukrainian armoured vehicles, artillery systems, aircraft, and helicopters — with Russia's confirmed losses substantially exceeding Ukraine's across every major category tracked. Unlike personnel estimates, equipment is physically observable; Oryx data represents the closest available ground truth in this conflict, though the project acknowledges it is a floor: not all destroyed equipment is photographed or geolocated.
Oryx · Center for Strategic and International Studies (CSIS)
CSIS estimates Russia at ~1.2 million total casualties; Ukraine at ~500–600k; ratio approximately 2:1¶
A June 2025 CSIS analysis estimated Russian forces had suffered close to 1.2 million battlefield casualties — killed, wounded, and missing — since February 2022, with roughly 415,000 occurring in 2025 alone, averaging nearly 35,000 per month. CSIS simultaneously estimated Ukrainian military casualties at 500,000–600,000 total, including between 60,000 and 100,000 killed. The implied casualty ratio of approximately 2:1 to 2.5:1 in Ukraine's favour was significantly narrower than Ukrainian government claims and rested on modelling rather than primary source data.
Center for Strategic and International Studies (CSIS) · Center for Strategic and International Studies (CSIS)
UK Ministry of Defence estimates 1.118 million Russian casualties (killed and wounded)¶
In October 2025, the UK Ministry of Defence estimated Russian forces had suffered 1,118,000 casualties — killed and wounded — since February 2022. UK intelligence chief Richard Moore separately estimated approximately one million Russian casualties, with around 240,000 killed. Neither estimate was accompanied by a published methodology. Both substantially exceeded Russia's last self-reported figure of 5,937 killed (September 2022) while falling below Ukraine's General Staff aggregate totals for the same period.
Mediazona and BBC News Russian verify 150,000+ named Russian military deaths through open sources¶
In November 2025, Mediazona and BBC News Russian confirmed their verified count of named Russian military deaths had surpassed 150,000 individuals — each confirmed by at least one independently verifiable record. The project noted the verified count was a floor: deaths leaving no traceable documentary record would not appear in the count. The discrepancy between the verified floor and Western intelligence estimates of 200,000–350,000 Russian dead was consistent with the project's acknowledged limitations.
Zelensky updates Ukrainian military death toll to approximately 55,000 killed¶
In February 2026, President Zelensky updated the official Ukrainian military death count to approximately 55,000 killed since February 2022 — up from 46,000 disclosed a year earlier. Meduza noted that open-source data suggested the actual figure was likely higher, with analysts placing the toll at 100,000–140,000. The pattern on both sides is consistent: official figures appear to undercount actual losses relative to independent estimates, and neither government has an incentive to advertise the full scale of its casualties.
UN OHCHR verifies 15,850 Ukrainian civilians killed since February 2022¶
As of April 2026, the UN Human Rights Monitoring Mission in Ukraine had verified 15,850 civilians killed and 44,809 injured since Russia's full-scale invasion began. The UN acknowledged these figures as an undercount due to access constraints in active combat zones. The year 2025 was the deadliest for Ukrainian civilians since 2022, with 2,514 verified civilian deaths — a 31 percent increase over 2024 and a 70 percent increase over 2023.
Mediazona statistical model estimates 352,000 Russian military dead; 221,206 verified by name¶
In May 2026, Mediazona published a statistical estimate based on Russia's Probate Registry — a publicly accessible inheritance database — concluding that approximately 352,000 male Russian citizens aged 18–59 had died in connection with the war between February 2022 and end of 2025. The joint project with BBC News Russian had simultaneously verified 221,206 individual Russian military deaths by name — each grounded in at least one independent source. The gap between the two figures (221,206 verified vs. 352,000 estimated) reflects the project's expectation that most deaths leave no accessible documentary trace.
Interpretation
Why both sides underreport
All warring parties have structural incentives to misrepresent their losses. Russia suppressed its casualty figures from the outset, likely to avoid domestic political cost: casualties must be explained to families, mobilised populations, and a public that was told this would be a limited operation. Ukraine reported its losses sparingly until mid-war, citing operational security and the need to sustain domestic and international morale. Neither incentive has changed. The result is that the true toll of this war is unknowable in real time and may remain disputed for years after any ceasefire.
The gap between verified floor and estimated ceiling
The Mediazona/BBC verified count of 221,206 named deaths (May 2026) sits just below the UK MoD's estimate of roughly 240,000 Russian killed, while their statistical estimate of 352,000 substantially exceeds it. The gap between methods is itself informative: open-source verification captures documented deaths; the probate registry captures deaths that generated inheritance proceedings; Western intelligence incorporates signals data and satellite imagery. Each method has distinct blind spots. The range 221,000–352,000 Russian dead is the most methodologically grounded current estimate for Russian fatalities.
Territory gained versus lives spent
Russia's 2025 territorial gains — roughly 4,500 km² at an estimated 1,000 casualties per day — represent the starkest illustration of the war's attrition logic. At those rates, Russia is spending its population to hold and incrementally expand a front line that moves at an average of 15–70 metres per day in its most active sectors. The counterargument — that Russia can absorb these losses indefinitely — rests on assumptions about Russian demographic reserves and internal political stability that are themselves contested. The cost-per-kilometre framing also applies to Ukraine: its defensive casualties, while lower by ratio, represent an existential drain for a country with a smaller population and a wartime economy.
The asymmetry in open-source verification
No equivalent to the Mediazona/BBC named verification project exists for Ukrainian military losses. Russia's decentralised civilian infrastructure — regional newspapers, local social media, Orthodox burial customs, and publicly accessible probate registries — creates documentary trails that open-source investigators can partially follow. Ukraine, fighting an existential conflict on home soil, has both the motivation and legal authority to suppress casualty information, and its population faces different social pressures around public mourning. The result is that Russian losses are better (though still incompletely) documented than Ukrainian losses — not because Russia is more transparent, but because its civilian record-keeping is more exposed to outside scrutiny.
Recommendations
Apply consistent scepticism to all wartime casualty figures, including Western estimates
No party to this war has an interest in accurate public reporting of its own losses. Journalists, policymakers, and analysts should treat all figures — including Western intelligence estimates — as contested claims rather than established facts, and indicate clearly whether a figure is an official claim, an open-source verification, or an analytical model. The Mediazona/BBC methodology is currently the most transparent available for Russian losses; even it acknowledges substantial undercounting.
Support open-source casualty verification before records degrade
The Mediazona/BBC named verification project is the highest-quality independent count currently available for Russian military losses. Comparable systematic projects for Ukrainian military casualties are less developed. Funding and institutional support for open-source casualty documentation — before social media posts are deleted, memories fade, and archives are closed — is essential for post-war accountability and long-term historical accuracy.
Sources
- Shoigu says 5937 Russian soldiers have died in Ukraine — Meduza (2022-09-21)
- "No losses", but mobilisation still announced: Shoigu reveals Russia's losses in Ukraine — Ukrainska Pravda (2022-09-21)
- Russian losses in the war with Ukraine. Mediazona count, updated — Mediazona (2026-05-22)
- 352,000 deaths in four years. Mediazona and Meduza's new estimate of Russian losses in Ukraine — Mediazona (2026-05-09)
- Verified Russian Deaths in Ukraine War Surpass 150K – Independent Tally — The Moscow Times (2025-11-29)
- Over 46,000 Ukrainian soldiers killed since start of Russia's full-scale war, Zelensky says — Kyiv Independent (2025-02)
- Zelenskyy reveals number of fallen Ukrainian soldiers — Ukrainska Pravda (2025-02-16)
- Russia's Battlefield Woes in Ukraine — Center for Strategic and International Studies (CSIS) (2025-06)
- Russia-Ukraine War in 10 Charts — Center for Strategic and International Studies (CSIS) (2025)
- 2025 deadliest year for civilians in Ukraine since 2022, UN human rights monitors find — UN Human Rights Monitoring Mission in Ukraine (OHCHR) (2025)
- Russia captured over 4,300 square kilometers of Ukraine in 2025, DeepState reports — Kyiv Independent (2025-12)
- Zelensky says 55,000 Ukrainian soldiers have died in the full-scale war with Russia — Meduza (2026-02-05)
- Ukrainian General Staff Reports Over 1.2 Million Russian Military Losses in 2025 — Mezha.net (2025)
- The Russia-Ukraine War Report Card, Dec. 10, 2025 — Russia Matters (Harvard Kennedy School) (2025-12-10)
- What is the death toll of Russia's war in Ukraine? — Kyiv Independent (2025)
- Ukraine's president says 55,000 troops killed so far, as negotiators talk peace — NBC News (2026-02)
- Moscow's own assessments reveal staggering Russian losses in Ukraine, intelligence suggests — Kyiv Independent (2024)
- Attack On Europe: Documenting Russian Equipment Losses During The 2022 Russian Invasion Of Ukraine — Oryx (2022)
Methodology
This paper collects casualty claims and estimates from official government statements, open-source verification projects, Western intelligence assessments, and policy analysis institutions. Because no party has disclosed verifiable primary data on military losses, timeline entries are split approximately equally between 'fact' and 'conjecture'. Conjecture entries cover reported and plausible claims not independently established as fact. Entries graded 'fact' record verifiable events (a statement was publicly made, a verification methodology was launched, a confirmed count milestone was reached) rather than the accuracy of the numbers contained in those statements. The UN OHCHR civilian casualty figures are the only numbers in this paper produced by an independent body with a documented, field-based verification methodology. Notable limitation: Russian military records are inaccessible; Ukrainian military records are not publicly available. This paper maps the landscape of competing claims; it does not adjudicate between them.