ISW Russian Offensive Campaign Assessment, May 1, 2026

Latest from the Institute for the Study of War.

Key Takeaways from the ISW:

  • Ukrainian forces struck Russian oil infrastructure in Krasnodar and Perm krais and Orenburg Oblast between April 29 and May 1, including a strike against the Tuapse Oil Refinery for the fourth time since April 1.
  • The Ukrainian General Staff confirmed that Ukrainian forces recently struck several Russian aircraft up to 1,676 kilometers from the international border.
  • Ukrainian strikes on Russian oil infrastructure degraded the average output of Russian oil refineries to their lowest level since December 2009.
  • Neither Russian nor Ukrainian forces made confirmed advances on the frontline.
  • Russian forces launched 409 drones toward Ukraine overnight.

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