Did Russia's Spring-Summer 2026 Campaign Really Fail

Introduction: what does the latest ISW report really say

A claim that deserves scrutiny

In recent days, a claim has been circulating widely in Western media: that the Russian military campaign of spring and summer 2026 failed to produce significant territorial gains. This claim, reported notably by The Epoch Times based on a report from the Institute for the Study of War, deserves rigorous examination before being accepted or rejected.

This fact-check sets out to examine the precise figures put forward by ISW, compare them with the previous year's data, and determine whether the claim of a Russian failure truly holds up to analysis.

What the ISW report actually claims

According to The Epoch Times, ISW reports that Russia seized or infiltrated approximately 11.75 square miles of Ukrainian territory in June 2026, compared with 185.81 square miles in June 2025, roughly one-sixteenth of the previous year's pace of gains. Over the full January-to-June period of 2026, Russian gains totaled 240.39 square miles, compared with 845.51 square miles for the same period in 2025, or about 28.43% of the previous pace.

These figures, if accurate, indeed represent a dramatic slowdown in the pace of Russian advances compared with the previous year, which partly supports the claim of a relative failure of the current campaign.

Verification: where the remaining Russian gains are concentrated

Kostyantynivka, main theater of limited gains

According to the reported data, the most significant Russian gains of this period are concentrated near Kostyantynivka, in the Donetsk region, an area that has remained one of the front's hot spots for several months. This geographic concentration of limited gains suggests Russia is struggling to open new, significant offensive axes elsewhere along the front.

This reality contrasts with the ambitions voiced by some Russian military officials early in the year, who spoke of far broader objectives for this spring-summer campaign, potentially including advances toward other Ukrainian regions.

A stagnation that confirms structural Russian difficulties

This concentration of gains in a single, relatively limited sector of the front confirms structural difficulties already documented by several Western military analysts: shortages of trained personnel, wear on armored equipment, and growing logistical difficulties for the Russian army after more than four years of a war of attrition.

These cumulative difficulties largely explain the dramatic gap between the territorial gains of 2025 and those of 2026, despite Russian troop numbers that remain substantial across the entire front.

Verification: the claimed human-loss ratio

Eight Russian losses for every Ukrainian loss

The New York Post, citing data from the Center for Strategic and International Studies, reports that Russia is losing roughly eight soldiers for every Ukrainian soldier killed, with a cumulative total of about 1.4 million Russian losses since the start of the invasion in 2022. This ratio, if accurate, would represent an extraordinary imbalance in the human cost of this war for the Russian army.

This figure of 1.4 million cumulative losses, including killed and wounded under the methodology generally used by CSIS, must be interpreted with the usual caution required for military statistics produced during active war, where full independent verification remains extremely difficult.

Necessary methodological caution

It should be noted that military casualty figures, whether from Ukrainian, Russian, or third-party sources such as CSIS, always carry a significant margin of uncertainty, due to the inherent difficulties of independently verifying losses on an active battlefield.

This methodological caution does not, however, call into question the general trend documented by several converging sources: a disproportionately high human cost for Russia compared with the territorial gains achieved during this specific campaign.

Verification: does this campaign really amount to a failure

Nuance without minimizing

While the figures put forward by ISW and picked up by several Western outlets are broadly corroborated by converging sources, the term "total failure" nonetheless deserves nuance. Russia continues to advance, even slowly, and retains strategic initiative in certain segments of the front, notably around Kostyantynivka.

Speaking of a failure to achieve operationally significant gains, as the ISW report precisely does, remains more accurate than speaking of a total failure of the Russian campaign, which continues to produce results, even modest ones compared with initial ambitions.

What this means for the rest of the conflict

This nuanced analysis suggests the war remains in a prolonged phase of attrition, in which neither Russia nor Ukraine appears able to achieve a decisive breakthrough in the near future, which could eventually favor a more advantageous negotiating position for Kyiv if this trend continues.

This outlook, while cautious, offers a useful counterpoint to the sometimes overly optimistic or overly pessimistic narratives circulating about the real state of the conflict, on both the Ukrainian and Russian sides.

Fact-check verdict

A claim broadly corroborated, with necessary nuances

After verification, the claim that Russia's spring-summer 2026 campaign failed to produce operationally significant gains, compared with the previous year, appears broadly corroborated by available ISW data, echoed by The Epoch Times and consistent with other Western military analyses.

The eight-to-one human-loss ratio put forward by the New York Post based on CSIS data remains harder to verify fully independently, but it fits a trend generally acknowledged by several military analysts who have followed this conflict since its start.

Verdict: mostly true, with a methodological caveat

The verdict of this fact-check is therefore: mostly true. The territorial figures, in particular, are precise and well documented, while the human-loss figures, though likely representative of a real trend, carry a margin of uncertainty inherent to any military statistic produced during active war.

This nuanced conclusion illustrates the importance of always distinguishing territorial data, generally more verifiable through satellite imagery and mapping, from casualty data, often harder to confirm independently and completely.

Why this Russian slowdown matters for Ukraine

A strategic window that could open

This documented slowdown in the Russian advance potentially offers Ukraine a strategic window to consolidate its defensive positions and, possibly, consider limited offensive operations in certain segments of the front where Russian forces show clear signs of exhaustion.

This strategic window, however, remains conditional on continued and strengthened Western support, without which Ukraine could struggle to fully exploit this relative advantage against a Russian army that, despite its difficulties, retains considerable resources.

An argument for maintaining Western pressure

This finding of a significant Russian slowdown should, logically, strengthen the case for increased Western support to Ukraine, precisely at a moment when additional military pressure could have the most decisive effect on the outcome of this phase of the conflict.

Easing the pressure now, when the data suggest a genuine Russian loss of momentum, would represent a major strategic error for Ukraine's Western partners.

Verification: Russia's initial objectives for 2026

Far broader stated ambitions at the start of the year

At the start of 2026, several military officials and commentators close to the Kremlin spoke of ambitious goals for this spring-summer campaign, potentially including the capture of additional strategic cities in Donetsk and increased pressure on other sectors of the front, notably toward Zaporizhzhia.

The comparison between these initial ambitions and the results actually achieved, as documented by ISW, reinforces the finding of a considerable gap between official Russian rhetoric and the operational reality on the ground.

A gap fueling doubts about Russian communication

This gap between forecasts and actual results fuels legitimate doubts about the general reliability of Russian military communication, which has already been caught out several times since 2022 regarding the real scale of its territorial advances and its military losses.

This reality should encourage greater caution toward any future triumphant announcement from sources close to the Kremlin regarding the evolution of this conflict.

Verification: what this changes for Western analysts

Revisiting some pessimistic forecasts

This precise ISW data should prompt some Western analysts, sometimes overly pessimistic about Ukraine's capacity to withstand Russian pressure, to revise their forecasts in light of this documented slowdown in the Russian advance on the ground.

This revision must not, however, swing toward excessive optimism, as the war remains costly and uncertain for Ukraine, despite this favorable slowdown in the Russian advance.

A balance to maintain in analysis

Maintaining rigorous analytical balance, neither excessively pessimistic nor excessively optimistic, remains essential to producing credible analyses of this conflict, which continues to evolve sometimes unpredictably despite the general trends documented by institutions like ISW.

This balance, difficult to maintain in an often polarized editorial climate, nonetheless remains the only methodologically defensible approach for anyone claiming to seriously analyze this war.

Conclusion: numbers that tell a story of attrition

A relative victory, not a total victory

This fact-check confirms that Russia's spring-summer 2026 campaign indeed produced results far below those of the previous year, both in territorial terms and in relative human cost. This is not, however, a total Russian defeat, but a significant slowdown that deserves to be documented precisely rather than exaggerated for communication purposes.

This nuance, essential to the credibility of any serious analysis of this conflict, must never be used to minimize the real importance of this slowdown for the future of Ukrainian military operations.

The importance of verifying before asserting

This fact-check illustrates the importance of always verifying claims circulating about this conflict, even those that seem favorable to Ukraine, before relaying them without nuance. It is this methodological rigor that distinguishes credible analysis from mere propaganda, regardless of which side produces it.

By Maxime Marquette, columnist

Columnist's transparency note

Who I am and my acknowledged biases

I am a columnist-analyst, not a professional military statistician. My analysis relies on reports published by the Institute for the Study of War and relayed by recognized media outlets, as well as data attributed to the Center for Strategic and International Studies. I openly acknowledge a pro-Ukrainian bias, but I strive to verify figures with the same rigor whether they are favorable or unfavorable to Ukraine.

I remain aware that military statistics, whatever their source, always carry a margin of uncertainty during active war.

What I don't know and my method

I cannot independently verify the precise methodologies used by ISW or CSIS to establish these figures. My method consists of cross-checking multiple recognized journalistic and institutional sources before issuing a fact-check verdict, explicitly flagging margins of uncertainty.

Sources

Primary sources

Russia's spring-summer campaign failed to achieve operationally significant gains: report — The Epoch Times, July 2, 2026

Daily assessments on the Russia-Ukraine war — Institute for the Study of War, June-July 2026

Secondary sources

Russia losing 8 troops for every 1 Ukrainian soldier killed: report — New York Post, July 2, 2026

Official reports from the Ukrainian Armed Forces — Ministry of Defense of Ukraine, July 2026

Ongoing coverage of the war in Ukraine — Kyiv Independent, July 2026

Military analyses of the Ukrainian front — Militarnyi, July 2026