General Staff reports 163 combat clashes in a day; ISW says Russian offensive tempo remains 'low'
Ukraine's General Staff logged 163 combat clashes by 22:00 on October 4, 2026, with the heaviest fighting on the Kostiantynivka and Pokrovsk directions. Separately, the Institute for the Study of War (ISW) said Russia's offensive tempo has been 'low' since March and that Ukraine's 'Vivaldi' operation near Lyman has regained significant territory.
Key points
- 163 combat clashes recorded since the start of the day, per the General Staff's evening summary (22:00, 4 October 2026).
- Heaviest fighting on the Kostiantynivka direction (22 assaults repelled) and the Pokrovsk direction (21 attacks repelled).
- Enemy carried out 1 missile strike, 54 airstrikes, dropped 158 guided aerial bombs, used 5,226 kamikaze drones, and conducted 1,641 shellings during the day.
- No offensive enemy actions on the Prydniprovske direction.
- ISW: tempo of Russian advance 'significantly slowed' in March 2026 and has remained low since; Russia sometimes loses more territory than it captures.
- ISW estimates Russian forces lost control of nearly 300 sq km of previously captured Ukrainian territory from March to September 2026.
- 'Vivaldi' operation near Lyman: 176 sq km liberated in total, including an additional 51 sq km during its third phase; liberated settlements include Nove, Ridkodub, Katerynivka, Serednie, and Shandryholove.
Why it matters
The daily clash count and the breakdown by direction show where Russia is concentrating pressure and where Ukrainian defenses are absorbing it. The Kostiantynivka and Pokrovsk sectors stand out as the current focal points. ISW's parallel assessment — labeling the Russian tempo 'low' and noting that Russia sometimes cedes more ground than it gains — points to a strategic picture in which the front is grinding rather than advancing for Moscow, and in which Ukraine's 'Vivaldi' operation has managed to disrupt a Russian encirclement plan around the so-called 'fortress belt.'
What happened
The General Staff of the Armed Forces of Ukraine published its operational summary as of 22:00 on 4 October 2026, reporting 163 combat clashes across the front since the start of the day. Russian forces were most active on the Kostiantynivka and Pokrovsk directions, where Ukrainian troops repelled 22 and 21 attacks respectively. Russian strikes during the day included 1 missile strike, 54 airstrikes, 158 guided aerial bombs, 5,226 kamikaze drones, and 1,641 shellings of populated areas and Ukrainian positions. Other sectors — North-Slobozhansky and Kursk, South-Slobozhansky, Kupiansk, Lyman, Sloviansk, Kramatorsk, Oleksandrivka, Hulyaipole, and Orikhiv — also saw combat, while the enemy did not conduct offensive actions on the Prydniprovske direction. On the Pokrovsk axis alone, preliminary Ukrainian counts reported 71 occupiers eliminated and 26 wounded, with extensive equipment losses and 292 UAVs destroyed or suppressed. Separately, the American Institute for the Study of War (ISW) said the tempo of Russian advance slowed significantly in March 2026 and has stayed 'low' since, and that Russian forces lost control of nearly 300 square kilometers of previously captured Ukrainian territory between March and September. ISW also highlighted Ukraine's 'Vivaldi' offensive near Lyman, in Donetsk Oblast, which it credited with thwarting Russian attempts at a wide encirclement of Ukraine's 'fortress belt.' Ukraine says 176 square kilometers have been liberated since the operation began, including settlements such as Nove, Ridkodub, Katerynivka, Serednie, and Shandryholove.
How Ukrainian sources describe it
Ukrainian reporting leads with the General Staff's daily operational summary, foregrounding the number of enemy assaults repelled and the specific directions where pressure is concentrated. The Kostiantynivka and Pokrovsk directions are presented as the day's focal points, with the Pokrovsk tally of enemy losses highlighted as evidence of effective Ukrainian defense. The coverage pairs this snapshot with ISW's assessment of a slowed Russian tempo and frames the 'Vivaldi' operation near Lyman as a successful Ukrainian counter-offensive that has frustrated a Russian encirclement plan.
Background
Commander of the Third Army Corps Andriy Biletsky publicly confirmed the 'Vivaldi' operation in mid-September 2026, after months of combat in the area east and northeast of Lyman in Donetsk Oblast. On 16 September, ISW assessed that the operation had achieved an operationally significant result by thwarting Russian attempts at a wide encirclement of Ukraine's 'fortress belt.' Settlements liberated during the operation include Serednie and Shandryholove, with the 66th Separate Mechanized Brigade reported as conducting the offensive on the Lyman direction. Combat on the day reported extended across the Pivnichno-Slobozhansky, Kursk, Pivdenno-Slobozhansky, Kupiansk, Sloviansk, Kramatorsk, Oleksandrivsk, Huliaipole, and Orikhiv directions in addition to the main focal points on Kostiantynivka and Pokrovsk.