Russian President Vladimir Putin has again told US officials that Russia can capture Ukraine’s Donetsk Oblast within several months, according to Ukrainian President Volodymyr Zelenskyy.

Speaking to the UN General Assembly on 24 September, Zelenskyy said this was the latest in a long series of similar promises as Russia has spent nearly five years trying to seize the region. He said Putin has made such promises 17 or 18 times, repeatedly pushing the deadline further back.

He contrasted those promises with Russia’s heavy battlefield losses and relatively limited territorial gains.

Russia has paid a huge price for its Donetsk offensive

Zelenskyy said Russian forces suffered 248,964 troops killed or severely wounded between January and August 2026.

He said Russia had captured only slightly more than 1,000 square kilometers of Ukrainian territory this year, while Ukraine had already liberated a significant portion of those gains.

Zelenskyy presented the figures as the human cost of Putin’s continued attempt to seize Donetsk, arguing that Russia is paying an enormous price for relatively limited territorial gains.

“Always the same: ‘Just a few more months,’” Zelenskyy said, adding that Putin would again fail to meet his latest deadline.

The Russian offensive is also facing a recent setback in northern Donetsk. Ukraine launched Operation Vivaldi in September to clear Russian infiltrators and retake ground near Lyman, disrupting Russia’s plan to encircle the fortified cities of the Donetsk “Fortress Belt.”

Ukrainian forces have reported retaking several settlements and clearing up to 125 square kilometers in the operation, although the full scope of the offensive remains undisclosed.

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Zelenskyy also warned that Russia’s ambitions extend beyond Donetsk. After saying Putin would again fail to capture the region, he said Russia would continue seeking other Ukrainian cities, naming Odesa, Kharkiv and Dnipro, while also pointing to Russian pressure on Moldova and threats toward Poland and the Baltic states.

Russia continues to pour missiles and drones into Ukraine

The battlefield campaign has been accompanied by a sustained Russian long-range attack campaign against Ukrainian cities and infrastructure.

Since the beginning of 2026, Russia has launched more than 2,100 missiles against Ukraine, including more than 950 ballistic missiles, according to Zelenskyy.

Ballistic missiles are particularly difficult for Ukraine to counter because it has a limited supply of interceptors capable of engaging them. Russia’s heavy use of ballistic weapons is therefore contributing directly to civilian deaths and infrastructure destruction.

Over the first eight months of the year, Russia also used 63,000 attack drones of various types, Zelenskyy said. More than 7,700 were jet-powered Geran drones, which he described as particularly destructive and dangerous.

The newer jet-powered drones are faster and more advanced than earlier Shahed-type models, making them harder to intercept and adding to the pressure on Ukraine’s air defenses as Russia attacks cities and infrastructure.

Zelenskyy said Russia was using the drones continuously to disrupt economic activity and normal life in Ukrainian cities, including by making it harder for children to attend school.

The figures show the scale of the Russian campaign beyond the front line. Alongside its ground offensive, Russia is using sustained missile and drone strikes to kill civilians, destroy infrastructure, and exhaust Ukraine’s air-defense resources.

North Korean troops add to Russia’s war effort

Zelenskyy also highlighted North Korea’s direct involvement in Russia’s war, saying its troops have suffered heavy losses while gaining battlefield experience alongside Russian forces.

He said North Korea’s military capabilities were also benefiting from its cooperation with Russia, pointing to improvements in its ballistic missiles and drone capabilities.

Ukraine recently transferred two North Korean prisoners of war to South Korea. Zelenskyy said capturing the soldiers alive had been difficult and described one prisoner’s attempt to take his own life after realizing he was about to be captured.

He said the soldiers had been conditioned to believe they had to die rather than surrender.

“Do you really want to give such a force more time to learn how to fight?” Zelenskyy asked.

Zelenskyy calls for de-escalation before winter

Zelenskyy separately warned that Russia could again target Ukraine’s energy and heating infrastructure this winter.

Russia has already intensified attacks on Ukraine’s energy system ahead of the cold season.

Russia has also explicitly threatened to “freeze” Ukraine this winter, with its Defense Ministry linking the threat to attacks on Ukrainian infrastructure. The country spent much of the previous winter dealing with the consequences of Russian strikes on power and heating infrastructure, including blackouts and disruptions to heat supplies.

Zelenskyy said Ukraine expects the coming winter to be difficult but warned that if Russia continues attacking Ukraine’s energy and heating systems, Ukraine will make the winter painful for Russia as well.

He called for steps toward de-escalation before winter, saying that diplomacy and military strength were both needed to end the war.

OpenAI, the US company behind ChatGPT, will hand Ukraine's government free access to a cyber-defense system and its most powerful artificial-intelligence (AI) model, Ukrainian defense outlet Militarnyi reported. The company unveiled the deal alongside the UN General Assembly, pitching it as a cyber shield for the hospitals and power plants Russia keeps targeting.

Russia's war on Ukraine runs through wires as much as skies. Its hackers have hammered energy, transport, and defense networks for years, on top of the blackouts its missiles already force on Ukrainian cities—and Western tech firms have kept stepping in to help hold the line.

What the Daybreak system does

The tool is called Daybreak. It scans digital systems, finds their weak points fast, and helps specialists close them, the report said. Daybreak handles the whole job on its own—a loop of inventory, detection, verification, assignment, remediation, and confirming the fix held.

The system is meant to shield civilian infrastructure, hospitals and power stations among it, from cyberattacks, BBC reported. Ukraine's Computer Emergency Response Team (CERT-UA) logged nearly 6,000 cyberattacks in 2025.

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Ukraine also gets OpenAI's top model

The agreement opens access to GPT 5.6 Sol, OpenAI's flagship and strongest model. The company built it for complex professional work—programming, research, science, and cybersecurity, the report said. Both come as part of one agreement between OpenAI and Kyiv.

George Osborne—Britain's former chancellor and now Head of OpenAI for Countries—put the aim plainly.

"Protecting civilian infrastructure means defending it against both physical and digital attacks, so people can continue to live, work and access essential services," he said.

Independent analysts called the deal useful but not unprecedented. Rafe Pilling of cyber firm Sophos said it could serve as a force multiplier for a Ukrainian cyber defense that is already highly capable but heavily burdened. Jamie MacColl of the Royal United Services Institute noted that Western tech firms have been supporting Ukraine for some time, partly altruistically but also because they gain valuable intelligence from an active conflict, and that Ukraine already has access to AI tools from OpenAI's competitors, including Google. The same frontier AI capabilities cut both ways—spotting weaknesses helps defenders block hackers and attackers find a way in.

OpenAI's rival Anthropic has restricted access to its most powerful cyber models on those grounds, while OpenAI has opened them to some European firms and UK banks, BBC reported.