Ukrainian forces have liberated more territory since the beginning of the fall than Russian troops have captured during the same period. This trend has persisted throughout 2026, Ukrainian President Volodymyr Zelenskyy said in his 18 October address. He also reported that Dobropillia, Kostiantynivka, and five other settlements remain under Ukrainian control.

Russia systematically exaggerates its battlefield gains. A recent briefing by Valery Gerasimov, chief of the General Staff of the Russian Armed Forces, in which he claimed that Russian forces had captured 92 settlements since the beginning of September, as well as Kostiantynivka and Dobropillia, and advanced to within 5 kilometers of Zaporizhzhia, was based on “outright lies, manipulation, and exaggerations,” Ukrainian General Staff spokesperson Andrii Kovaliov said.

Ukraine also continues to defend areas near Kramatorsk, Zelenskyy said. He dismissed Russian claims about Zaporizhzhia.

“We are destroying Russians 20 kilometers from Zaporizhzhia, not five, as someone in Russia is fantasizing to Putin,” Zelenskyy said.

Ukrainian forces continue to hold back Russian assaults and destroy groups of occupying troops attempting to infiltrate Dobropillia, the president said. The Defense Forces are also defending positions elsewhere in Donetsk Oblast and in Kharkiv and Zaporizhzhia oblasts.

Zaporizhzhia axis: Russians seek to move artillery closer to the city

Russia seeks to advance on the Zaporizhzhia axis to bring the regional capital within range of its tube artillery, hold forward positions, and protect rear areas from Ukrainian strikes, the Institute for the Study of War (ISW) said on 18 October.

Maksym Kravchuk, spokesperson for Ukraine's Southern Group of Forces, refuted Gerasimov’s claims that Russian forces had captured Malokaterynivka, located south of Zaporizhzhia, stressing that the settlement remains under Ukrainian control, the Center for Countering Disinformation said on 18 October. Ukrainian troops recorded a video directly from Malokaterynivka to confirm this.

As of 18 October, Russian forces had advanced or infiltrated to within 24 kilometers of Zaporizhzhia, ISW said.

Dobropillia remains under Ukrainian control despite Russian assaults

Dobropillia is now a fortress anchoring Ukrainian positions along the highway leading northeast toward Kramatorsk. Russia first tried to take Dobropillia in August 2025 and is now trying again.

Russia is redeploying reinforcements to the Dobropillia axis and continues to send assault infantry through the village of Nove Shakhove despite heavy losses. Russian command will likely try to encircle or at least envelop Dobropillia and cut off Ukrainian supply routes from the direction of Bilozerske, Ukrainian military analyst Kostiantyn Mashovets wrote on 9 October.

Mashovets sees the push as the southern flank of a Russian effort to envelop the whole Sloviansk–Kramatorsk urban area.

Dobropillia remains under Ukrainian control, Zelenskyy said. On 18 October, footage located by analysts showed a Russian soldier hoisting a flag in the town's southeast after an infiltration, yet ISW has found no sign that Russian troops have dug in there.

Russia claimed to have captured Kostiantynivka, but ISW found no evidence

Ukrainian troops in and around Kostiantynivka are stopping Russia from locking in its gains in the city or pushing on toward Druzhkivka and Kramatorsk, ISW said on 17 October.

Russian officials claimed that capturing Kostiantynivka was an important step toward establishing control over the Sloviansk–Druzhkivka–Kramatorsk urban agglomeration and the entire Donetsk Oblast, ISW said in August. The Kremlin also claimed that Russian forces had captured the city as early as 5 July, the institute added.

A Russian military blogger claimed that Russian forces had full control over Kostiantynivka, but ISW found no evidence to support this claim, the institute said in its 16 October assessment. Russian troops had only infiltrated parts of southern and central Kostiantynivka without consolidating positions, and there was no evidence of their presence in its northern part, ISW added.

Ukraine’s operation to strike Russian targets at operational and strategic depth is continuing, Unmanned Systems Forces Commander Robert “Madiar” Brovdi said. He listed data centers, military and strategic sites, and energy hubs “deep in the swamps,” his usual name for Russia.

The fresh statement lands amid fears that a Starlink disruption could break front-line operations.

Overnight into 14 October, the 7th Air Assault Corps said the faster StarShield military package, an advanced version of Starlink that its units depend on, had been throttled, halting a series of missions. Against that backdrop, Brovdi says his branch’s strikes are not falling.

“A serious brawl is underway in conditions of significantly worse weather, drizzle, fog, and precipitation,” Brovdi says, underscoring that the pace held through conditions that usually ground drones.

Over the first two weeks of October, the drone branch verified 7,306 Russian soldiers killed or wounded, up 59.45% on the same period in August and 24.65% in September, he writes on his Telegram page, calling the trend the opposite of de-escalation.

Where the killing climbs fastest, and who is doing it

One sector stands out above the rest. On the Dobropillia-Pokrovsk axis, in the zone of the Azov group, the branch’s drones accounted for 3,221 Russian losses in the first two weeks of October, a 102% jump on August and 42.5 percent on September, Brovdi reports.

The figures cover only the drone branch and are verified in the military’s Delta, the video fixation system, he stresses, so the full count of Russian losses across all Ukrainian forces can be much higher.

The scale of a campaign that will not slow down

The numbers behind the claim are large. Over the first two weeks of October, the branch flew 124,500 combat missions, strike and reconnaissance, and hit 32,172 Russian targets, of which manpower was 22.7%, by his count.

That works out to about 2,298 Russian targets a day, he adds, the kind of tempo that makes any talk of a lull on the front hard to square with what his drones are recording. The deep-strike half of that campaign has grown 1,150% over 2026, reaching military-industrial and energy sites far inside Russia, according to Euromaidan Press.

Ukraine's drone pilots are killing and wounding far more Russian infantry than they did a month ago. Ukraine's Unmanned Systems Forces confirmed that their pilots took out 2,699 Russian infantry from 1 to 5 October, 39.7% more than in the first five days of September, Commander Robert "Madiar" Brovdi wrote on Telegram on 6 October.

The Unmanned Systems Forces, the branch of Ukraine's military that fights with drones, count only losses verified by their own pilots in the military's Delta system, so the full picture of Russian losses is larger, Brovdi stressed. Compared with the first five days of August, the rise is 76.5%, from 1,529 losses, which he ties to denser and more frequent Russian assaults.

The sharpest growth occurred in the area of the 1st Azov Corps of Ukraine's National Guard on the Dobropillia-Pokrovsk axis in Donetsk Oblast, as fighting for fortress-belt cities continues. Drone pilots recorded 1,268 Russian losses there, 43% more than the 884 of early September and 91% more than the 664 of early August.

"Russia's hidden mobilization is in action. This is the beginning," Brovdi said ironically.

Russia doubles its monthly recruitment pace

Russian recruitment, mobilization, and contracts run at about 70,000 people a month, twice the 35,000 monthly average from January to August 2026, Brovdi noted on 16 September, when he forecast 12,500 losses for his pilots in September.

He expected the toll to keep climbing. Bigger records still lie ahead because of Russia's unannounced mobilization, Brovdi added on 24 September.

Drone pilots outpaced August by a quarter

September was completed above that forecast. The pilots logged 13,358 Russians killed or wounded, 25.35% more than the 11,010 of August, an average of 445 a day against 355, Brovdi reported. By his count, that equals the full assault infantry of one battalion every day, and his pilots hit a Russian target every 42 seconds.

Two sets of axes took the heaviest toll. In the first 24 days of September, the Dobropillia and Pokrovsk axes accounted for 4,018 losses, and the Oleksandrivka and Huliaipole axes for 3,021, according to Brovdi. The first of those groups covers the same Dobropillia-Pokrovsk axis where the Azov corps zone recorded the sharpest October rise.

Russia lost almost 300 km² of Ukrainian territory on net between March and September 2026, and it likely gained no ground in September despite its heaviest casualties of the year, the Institute for the Study of War (ISW) assessed. Ukraine's Operation Vivaldi accounts for much of the swing. The think tank notes that Ukraine's secrecy around such counterattacks makes exact monthly tallies hard.

Russia has pressed attacks along the entire front through 2026, accepting mass casualties for marginal ground, and its battlefield year has already been called its worst since 2023. Its losses have been outpacing its recruitment for months.

Russia came out behind in September

Russian forces seized 175.54 km² in September but lost 256.35 km², a net loss of 80.81 km², or minus 2.69 km² a day, ISW calculated. The balance stayed negative when Russian infiltrations into areas Russia does not control are counted: Russia seized or infiltrated 143.2 km² but lost 318.38 km², a net loss of 175.18 km².

The September figures include at least 147 km² near Lyman that Ukraine liberated over earlier months, but that ISW recorded only once details of Operation Vivaldi emerged in September. The operation already disrupted Russia's plan to encircle the Fortress Belt cities from the Lyman and Dobropillia directions.

Almost 300 km² lost since March

Russia's rate of seizing territory dropped sharply in March 2026 and has stayed low, or even negative, since, ISW found. After controlling for the gains Ukraine made during Vivaldi, Russia lost control of 293.59 km² net across the front since March. Counting infiltrations, it gained a presence in only 174.44 km² over the same period.

ISW's monthly chart shows net Russian losses of 116.01 km² in April and 281.1 km² in May, modest gains in June, July, and August, and a net loss again in September. Oleksandr Syrskyi, then Ukraine's commander-in-chief, reported in June that Ukrainian forces had recaptured 100 km² in May.

More than 46,000 casualties for no ground

Russian forces suffered 46,230 casualties in September, Ukraine's General Staff reported. It is the third straight month above 40,000 and the highest monthly toll of 2026, by Kyiv's count. Monthly Russian casualties have climbed from 32,980 in April to 42,860 in July and 42,020 in August, ISW's chart shows.

Russia keeps suffering heavy personnel losses while making extremely limited or even net-negative territorial gains, ISW said, and its current force generation system still recruits fewer soldiers than it needs to replace them.

Ukraine's effective operational security around Vivaldi, likely to continue in future counterattacks, will make meaningful month-to-month assessments of Russian gains and losses hard, the think tank added.

The Institute for the Study of War (ISW) published a map in its analytical report on 24 September that contrasts the claimed Russian encirclement with the location of Russian forces as assessed by the experts. Based on the evidence observed by ISW, the nearest area where Russian forces are present is 10.2 kilometers from the southeastern outskirts of Dobropillia.

Russia has been spreading disinformation about its successes around Dobropillia as part of what ISW calls a cognitive warfare effort to portray Ukrainian defenses as on the verge of collapse. Russia's Defense Ministry published a map claiming the city was surrounded. ISW's own map challenges it. The Ukrainian military says the city remains under its control.

Russian Defense Ministry claims it is already destroying encircled Ukrainian troops in Dobropillia and moving further

Units of Russia's Center Grouping of Forces continue combat operations against encircled Ukrainian forces in the Dobropillia area of Donetsk Oblast while simultaneously advancing toward Oleksandrivka, the Russian Defense Ministry claimed. ISW analysts, meanwhile, said they have not observed evidence supporting Russia's claim that the city is encircled. They also noted that Ukrainian officials "directly refute" the claim.

ISW observed evidence that Russian infiltrators, small groups, were operating east and northeast of Dobropillia on 19 and 20 September. The institute did not assess that these infiltrators had consolidated their positions.

Ukrainian forces maintain positions south and northeast of Dobropillia, military observer Kostiantyn Mashovets said on 20 September, according to ISW.

Russian forces have not made major gains in the Dobropillia direction, the chief of staff of an artillery reconnaissance battalion said on 22 September, according to the institute. On the same day, a Russian milblogger described the "alleged Russian encirclement of Dobropillia" as potentially meaning not the direct presence of infantry, but only the establishment of fire control over Ukrainian logistics, including roads west of Dobropillia and toward Sviatohorivka, according to ISW.

ISW noted that Russia's pervasive military culture of lying—what Russian milbloggers themselves call "beautiful reports"—has degraded the Defense Ministry's own ability to understand the battlefield and enabled inflated claims like the Dobropillia encirclement.

Russia uses this disinformation as a "diversion"

In its statement, the Russian Defense Ministry itself described Dobropillia as a "strongly fortified settlement" whose seizure would threaten key Ukrainian supply lines running from Dnipropetrovsk Oblast toward the Fortress Belt—the Sloviansk-Kramatorsk-Druzhkivka urban agglomeration.

Russia has recently renewed its attempts to break through toward Dobropillia.

Third Army Corps Commander Andrii Biletskyi said that Russian forces sought to bypass the fortified cities through Dobropillia and link up with troops advancing from north of Lyman, rather than launch a direct assault. ISW noted on 16 September that the Vivaldi operation disrupted Russia's two-pronged plan. In its 24 September report, ISW said Russia's claims about Dobropillia were partly intended to divert attention from Ukraine's elimination of the Russian salient north of Lyman, which has likely forced Russia's command to rethink its wider encirclement plans.

Within 24 hours of claiming Ukrainian troops were surrounded near Dobropillia, Russia’s Defense Ministry and pro-war channels expanded the narrative to several supposed encirclements in northern Kharkiv Oblast. Evidence supports none of that, the Institute for the Study of War (ISW) has said.

The claims come as Ukrainian forces make gains in several frontline sectors, according to ISW. Near Dobropillia, Russian bloggers described the ability to fire on supply roads rather than troops surrounding the town. At the same time, Ukrainian forces said they had prevented Russia from physically cutting the routes.

Russia’s Defense Ministry claimed its forces had captured Krasnyi Yar and Potykhonove northeast of Kharkiv. Pro-war bloggers then claimed Russian troops threatened to trap Ukrainian units near Riznykove and had already surrounded others near Rublene. One asserted that roughly 1,500 Ukrainian soldiers were encircled across 460 square kilometers.

ISW found no evidence for those claims. A Ukrainian brigade spokesperson said Russian forces were still shelling settlements they claimed to hold and described positions in the area as heavily intermingled, with no clear front line.

Around Dobropillia, the Kremlin-linked Rybar channel claimed Russian troops were infiltrating toward nearby settlements and making tactical gains south of the town. It did not claim Russian forces had secured those settlements or show an encirclement on its map, ISW noted.

Another Russian blogger said neither side currently had the forces needed to establish and sustain a genuine encirclement.

Russia’s push toward Dobropillia continues

Russia’s Defense Ministry had claimed on 22 September that its troops surrounded Dobropillia, a transport hub on the approach to Ukraine’s fortified cities in Donetsk Oblast.

ISW found no evidence for that claim and linked its timing to the UN General Assembly and Ukraine’s recent battlefield gains. A Ukrainian officer said Russian troops had made no major advances near the town.

Russian assaults continue despite that setback. A Ukrainian staff sergeant reported a sharp increase in the number of small groups trying to reach Dobropillia. On 23 September, Ukraine’s 1st Azov Corps said its forces had prevented Russian troops from physically cutting supply routes toward Dobropillia and Druzhkivka.