Russian Offensive Campaign Assessment, September 28, 2026

Our verdict

This ISW daily assessment is largely attributed and hedged, and it covers Russian and Ukrainian sides, Polish statements, and Russian economic moves in a useful way. Its main weakness is that the Lyman section and some takeaways adopt Ukrainian military claims and ISW inferences as fact, without a Russian response or independent confirmation. Readers should treat the 176 sq km territorial figure and the 289-drone count as unverified and check them against other reporting.

Why this lean

The piece has no left/right political angle; it is a military assessment of an interstate war. The main slant is toward the Ukrainian military account and ISW's own analytical voice, not a US partisan axis, so the lean score stays at 0 and the slant is covered in findings.

Framing

A military-analytic account of the war in which Ukrainian operations and Russian information and economic problems are central, told from the viewpoint of an external analyst relying heavily on Ukrainian official and Russian milblogger reporting.

Confidence: Medium — The text is an unusually detailed military assessment that is cut off mid-citation, and several claims depend on contested battlefield reports that cannot be checked from the text alone.

Key Findings

1. 1The Lyman section reports Ukrainian claims as fact in several places. 'Liberation of Nove...' and 'feinted and deceiving Russian forces' are stated without attribution, and the Russian side is not heard on these claims.
2. 2ISW's inference that Ukrainian forces 'neutralized or otherwise negated Russian drone defenses' rests on the commander's account alone. It is introduced with 'It is notable', which makes an interpretation look like an observation.
3. 3The milblogger section is well attributed: Dva Mayora and Starshe Edy are named and their claims are marked as claims. But ISW then states 'Inaccurate reporting... consistently degrades Russian battlefield awareness' as its own finding, which goes beyond what the sources show.
4. 4The oil decree section is a strength: it lists several plausible motives (operational security, sanctions, domestic discontent) and hedges them with 'likely' and 'could aim'. It does not claim to know which motive applies.
5. 5Polish statements are attributed by name and title, and the 'no violation of airspace' point is included. This gives the reader the official context needed to read the drone story.
6. 6ISW openly says it does not report Russian war crimes in detail and condemns them. This disclosure is transparent, but it means the report is selective in scope and readers should know that.
7. 7The text is cut off during the Russian Northern Axis section, and the 289-drone figure appears only in the takeaways with no source. Readers should treat it as unverified.

Who gets a voice

• ISW (report authors)

  Institute for the Study of War, analytical assessor writing in its own voice
  External military analysisMain voice
• Andrii Biletskyi

  Ukrainian 3rd Army Corps commander; reports the Lyman operation results
  Ukrainian militaryMain voice
• Dva Mayora

  Ultranationalist Russian milblogger criticizing Russian information policy
  Russian ultranationalist milbloggerMinor voice
• Starshe Edy

  Russian milblogger who says inaccurate reporting hurts Russian planning
  Russian ultranationalist milbloggerMinor voice
• Vladimir Putin / the Kremlin

  Signed the oil and gas information restriction decree and the Metro AG asset transfer
  Russian stateMinor voice
• Wladyslaw Kosiniak-Kamysz

  Polish Deputy Prime Minister and Defense Minister; confirmed alert and scramble but no airspace violation
  Polish governmentMinor voice
• Cezary Tomczyk

  Polish Deputy Defense Minister; announced new rules of engagement
  Polish governmentMinor voice
• Volodymyr Zelensky / Ukraine SBU

  Report strikes on Russian oil depots and defense plants
  Ukrainian governmentMinor voice

Loaded language

Dimension Breakdown

Missing Perspectives

• No Russian official response to the Operation Vivaldi claims or the 'beautiful reports' criticism, so the Lyman account is one-sided and the Russian MoD denial, if any, is not presented.
• No independent verification of the 176 sq km figure (for example, mapping by a third party or a journalist on the ground). This matters because the territorial claim drives the report's main takeaway.
• No source for the 289-drone figure in the takeaways, which leaves a headline number without context on whether it is typical or a spike.
• Limited Russian government voice on the Metro AG and oil decree, which matters because the report reads them as economic-security moves, not as the government's own stated reasons.

Highlighted Passages

Key Facts

• According to Ukrainian 3rd Army Corps commander Andrii Biletskyi, Ukrainian forces liberated 51 sq km in the third phase of Operation Vivaldi, for a total of 176 sq km across three phases.
• According to ISW, Putin signed a decree on September 28 restricting access to Russian oil and gas industry information, including market datasets and terminal coordinates.
• According to ISW, citing geolocated footage, a Russian Geran-5 drone struck a truck parking lot less than 1.5 km from the Ukrainian-Polish border at Yahodyn.
• According to Polish Defense Minister Kosiniak-Kamysz, Polish air defenses were alerted and aircraft scrambled, but no aerial targets violated Polish airspace.
• According to Polish Deputy Defense Minister Tomczyk, Poland will change its rules of engagement in the coming days to allow engagement on radar-based positive identification.
• According to an industry source cited by TASS, Russian authorities are preparing to extend the diesel export ban to the end of October 2026.
• According to Ukraine's SBU, Ukrainian forces struck oil depots in Krasnodar Krai on the night of September 27 to 28.
• According to Rustam Minnikhanov, Tatarstan is creating a support structure for active-duty soldiers, led by Alexander Lapin as deputy prime minister.