Key Takeaways from the ISW:

  • Ukrainian forces repelled a reinforced battalion-size Russian mechanized assault in the Kupyansk direction on September 26 — the first large Russian mechanized assault along the Kupyansk-Svatove-Kreminna line since Winter 2024.
  • Russian forces may be intensifying their efforts to reach the Oskil River, although Russian advances on the east (left) bank of the Oskil River will likely continue to be relatively gradual.
  • The Russian military command has demonstrated that it will likely accept continued gradual gains along the Kupyansk-Svatove-Kreminna line, however.
  • The Western Grouping of Forces likely has limited capacity to maintain an intensified offensive effort along the Kupyansk-Svatove-Kreminna line or conduct effective combat operations that result in more rapid gains.
  • Russian authorities appear to be expending a significant amount of effort to influence the Western debate about allowing Ukraine to use Western-provided weapons to conduct long-range strikes against military objects in Russia. This Russian effort suggests a deep concern with the operational pressures that such strikes into Russia would generate on Russian offensive operations in Ukraine, although US officials remain hesitant to permit Ukraine to conduct such strikes.
  • The benefits of allowing Ukraine to use Western-provided long-range strike systems against Russia may outweigh the risk of Russian retaliation more than Western policymakers are currently considering.
  • Russian Defense Minister Andrei Belousov met with Kremlin-affiliated milbloggers on September 27, likely as part of the ongoing Kremlin effort to coopt Russian milbloggers and downplay recent backlash in the ultranationalist information space over the death of two prominent drone operators.
  • The People's Republic of China (PRC) announced a new initiative to draw international support for its alternative peace plan for Ukraine amid increasing cooperation with Russia.
  • Ukrainian President Volodymyr Zelensky continued to meet with US officials about the war in Ukraine during his visit to the US on September 26 and 27.
  • Russian and Ukrainian forces continued assaults in Kursk Oblast, but neither side made further advances.
  • Russian forces recently advanced within and around Toretsk and southeast of Pokrovsk.
  • Russian authorities continue to threaten Russian frontline soldiers' ad-hoc communications networks.

Authors: Riley Bailey, Angelica Evans, Kateryna Stepanenko, Grace Mappes, Haley Zehrung, and Frederick W. Kagan.

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