Ukrainian troops infiltrate Russian rear through gas pipelines near Kupiansk, Khartiia says



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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.
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 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.
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.

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Ukraine and NATO have unveiled two artificial intelligence (AI) tools in Vilnius, Lithuania, Ukraine’s Defense Ministry reported on 13 October. One forecasts Russian drone attacks near the front and is ready to join the Armed Forces’ situational awareness systems. The other helps plan artillery fire and is still in testing.
A forecast of where, when, and which drones will fly targets the main source of losses near the front. In March, Ukraine’s military put the share of front-line casualties caused by FPV drones at up to 80%. In May, Ukraine’s drone forces commander Robert Brovdi said Russia was copying Ukraine’s model to grow its drone forces. A month earlier, Presidential Office head Kyrylo Budanov wrote that adding more drones no longer fundamentally changes the battlefield. The next stage, he said, is full integration of AI.
The NATO-Ukraine Joint Analysis, Training and Education Center (JATEC) presented both at a three-day seminar in the Lithuanian capital. NATO’s Allied Command Transformation and Ukraine’s Armed Forces built the tools with JATEC’s support.
“The solution has already been validated using real-world datasets. It has been refined and is ready for integration into the Armed Forces of Ukraine's situational awareness systems,” the ministry said.
Model No. 13 works from past data, weather, and the current battlefield situation. The ministry said it can identify the intensity of attacks, the areas, the time windows, and the types of drones with a high probability.
Model No. 32 is a decision-support module. It tests whether artillery plans can be generated automatically. It weighs the mission’s requirements and current operational data, including available weapons, ammunition, firing positions, and constraints.
First, it applies logistics, ballistics, and impact-zone parameters to throw out unworkable options. Then it scores and ranks the rest. That means less hand-based comparison, faster decisions, and a more efficient fire loop, the ministry said. The prototype is now with the Ukrainian military for trials. If the trials succeed and it is validated, it could be expanded to other units that strike Russian forces.
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Ukrainian reconnaissance troops used a captured Russian soldier’s radio for four days to listen to Russian military communications and relay important intelligence to their command, according to a report by ArmyInform, which covered the episode. The soldiers serve in the 23rd Separate Reconnaissance Battalion, which operates in the Oleksandrivka sector, the report noted.
Russia uses infiltration tactics involving small groups to slip through Ukrainian positions undetected, establish themselves into the rear of Ukrainian positionse, and create conditions for the further advance of its main forces. They are countered not only by reconnaissance drones but also by specialized reconnaissance teams, which sometimes cover several dozen kilometers on foot to reach their designated targets.
Ukrainian reconnaissance troops captured a Russian soldier in the grey zone as he was trying to enter a neighboring house, the report said.
“He took off his body armour and set his rifle aside. He felt right at home. Our commander went over and offered him a chance to surrender, and he agreed. He then stayed with us for four days. He told us everything he knew,” a soldier with the call sign Kubik said in the report.
The soldiers’ hideout was later discovered. Fleeing a Ukrainian drone, a Russian infantryman ran into the building where the reconnaissance troops were staying. The position was subsequently attacked by FPV drones, followed by an artillery barrage.

One Ukrainian soldier sustained a minor injury, but the group managed to withdraw without suffering serious losses.
For reconnaissance troops, the journey to their positions and the return trip remain perhaps the most dangerous parts of a mission. During his year of service, Kubik has completed five combat missions, one of which lasted 23 days, according to the report.
During their most recent mission, the soldiers covered 20 kilometers on foot in one direction, moving mostly through tree lines, Kubik said. He added that they had to run across open areas and destroy enemy drones lying in wait before quickly retreating to cover.
Because of the constant threat from the air, the length of time reconnaissance troops can remain at their positions depends on the weather and the situation, the report noted. Sometimes, staying in place longer is safer than risking exposure while a team is being replaced.
Twenty-year-old Mykyta, whose call sign is Dzhus, is preparing for his first combat mission as part of the 23rd Separate Reconnaissance Battalion, the report said. He joined the military under the “18–24 Contract” program after leaving the police force.
“Many people who join under the ‘18–24’ contract go into UAV operations, but I’m more interested in infantry work. We have many experienced reconnaissance soldiers, and the guys are constantly giving advice and sharing their experience,” Dzhus said.

He is heading out on the mission under the guidance of an experienced commander, he said. The soldiers prepare thoroughly for every mission, practicing at the training ground and rehearsing procedures tailored to the specific task, the media outlet noted.
Russian forces continue to use small-group infiltration tactics. For example, the Russian army is likely increasing its infiltration efforts in Kharkiv Oblast, taking advantage of the remaining summer foliage for concealment, the Institute for the Study of War reported on 9 October. In particular, Russian forces are seeking to infiltrate the city of Kupiansk in small groups, according to an RBC-Ukraine report published on 7 October.
Similar incidents have also been reported in Donetsk Oblast. Russian troops are attempting to infiltrate the gaps between Ukrainian observation posts in small groups and establish positions there, Artem Prybilnov, spokesperson for the 155th Separate Mechanized Brigade, said during a broadcast on Suspilne.Studio on 7 October, NV reported. Their aim is to build up forces for a further advance toward Dobropillia. Ukrainian infantry, working alongside drone operators, is repelling the ongoing Russian attacks and preventing them from achieving this goal, Prybilnov added.
As autumn sets in and vegetation becomes thinner, Russian troops find it increasingly difficult to conceal themselves in tree lines, Prybilnov noted. During the summer, they used these areas for cover and to accumulate personnel, ammunition, and equipment, the spokesperson said. Russian forces are now attempting to infiltrate villages, where they can hide in buildings and basements and establish positions, he added.
Russian forces in occupied Oleshky are taking food parcels delivered by Ukrainian military drones from local residents and treating possession of the supplies as possible evidence of collaboration with Ukraine, according to Tetiana Hasanenko, head of the Oleshky City Military Administration.
Hasanenko said Ukrainian forces had delivered food to the Russian-controlled town by drone on several occasions, but that the latest operation was considerably larger, involving approximately four tonnes of supplies.
In comments published on 30 September, she said some residents managed to collect one or several packages, while others were unable to reach the supplies.
Russian personnel were subsequently taking some of the food from residents, she said.
According to Hasanenko, people found with goods that were not Russian-made were also questioned about where they had obtained them. Residents could then be accused of co-operating with the Armed Forces of Ukraine if Russian personnel concluded that the products had arrived through Ukrainian drone deliveries.
The allegations cannot be independently verified from inside Russian-controlled Oleshky. However, severe food shortages and restrictions on humanitarian access to the town have been independently documented by the United Nations.
The latest operation took place on 27 September and involved Ukrainian military units working with the Kherson regional authorities.
According to the regional administration, heavy drones transported approximately four tonnes of food and medicines to about 100 locations around Oleshky.
Instead of dropping the cargo directly from altitude, packages were lowered on cables to designated locations.
Units involved included the 30th Marine Corps, the 34th Separate Marine Brigade “Borysfen”, National Guard formations and Ukrainian border guards.
Ukrainian authorities say drone deliveries have become one of the few remaining ways of bringing supplies into the town. The Kherson administration said it had been sending food across the Dnipro by drone since March.
It estimates that around 2,000 civilians remain in Oleshky, including almost 50 children.
EU Today reported earlier this month that residents of Oleshky were facing increasingly severe food shortages as conventional supply routes became progressively more difficult to use.
The town lies on the Russian-controlled eastern bank of the Dnipro, opposite Ukrainian-held territory around Kherson. The area is exposed to artillery fire, short-range drone operations and extensive mine contamination.
The humanitarian conditions described by Ukrainian officials are consistent with findings published by the UN Human Rights Monitoring Mission in Ukraine.
After interviewing more than 20 residents from Russian-occupied communities near the front line, including Oleshky and Hola Prystan, the mission reported in June that thousands of civilians were facing food shortages and inadequate access to medical assistance.
Residents told UN investigators that the security situation had deteriorated considerably during 2025 and 2026.
The last grocery shop in Oleshky had stopped regular operations in January because supplies had run out, according to testimony collected by the UN. For months, residents depended on preserved food and limited private deliveries.
As of 24 June, the UN said no food deliveries had reached the town since 26 May.
Drone attacks and mines have also made attempts to bring supplies into Oleshky dangerous. On 2 June, a civilian convoy carrying food and humanitarian assistance struck a landmine at the entrance to the town, killing one person and injuring three others.
Under international humanitarian law, an occupying power is required to ensure that food and medical supplies are available to the civilian population and to facilitate humanitarian relief when local resources are inadequate.
The deteriorating situation has prompted repeated Ukrainian appeals for international intervention.
The Ukrainian Council of Churches and Religious Organisations recently called on Pope Leo XIV and international humanitarian organisations to support efforts to reach civilians trapped in the town. EU Today reported on the appeal for humanitarian access and civilian evacuation, which was also directed towards the International Committee of the Red Cross and UN member states.
Hasanenko has also alleged that disappearances continue inside the occupied community.
She said one family had recently disappeared after being detained by Russian forces, adding that Ukrainian authorities did not know whether its members were still alive.
The individual case cannot presently be independently confirmed. The UN has, however, documented arbitrary detention, enforced disappearances, torture and ill-treatment of civilians in Russian-occupied Ukrainian territory during the war.
With independent humanitarian organisations unable to operate freely in Oleshky and conventional supply routes severely restricted, Ukrainian forces are increasingly using drones for a role far removed from their conventional battlefield purpose: carrying food and medicines across the Dnipro to civilians who remain behind Russian lines.