Russian Offensive Campaign Assessment, September 17, 2025 (Institute for the Study of War)

The Trump administration reportedly approved its first European-financed foreign military sales to Ukraine through the Prioritized Ukrainian Requirements List (PURL) initiative.
Senior Russian officials continue to publicly signal the Kremlin’s unwillingness to engage in negotiations that result in anything less than full Ukrainian capitulation.
The Kremlin is using the threat of aggression to try to prevent European states from committing troops to postwar Ukraine as part of Western security guarantees.
Senior Kremlin officials, likely with Russian President Vladimir Putin’s approval, pushed Kremlin Deputy Chief of Staff Dmitry Kozak out of his senior Kremlin position following years of disagreement with Putin’s policies about the war in Ukraine.
Radio Free Europe/Radio Liberty (RFE/RL) identified the base and commander of Russia’s Rubikon Center for Advanced Unmanned Technologies.
Collective Security Treaty Organization (CSTO) command and staff military exercises are occurring in Kyrgyzstan from September 17 to 20.
Ukrainian forces recently advanced in the Kostyantynivka-Druzhkivka tactical area. Russian forces recently advanced near Pokrovsk and in western Zaporizhia Oblast.

Russian Offensive Campaign Assessment, Sept 17, 2025 | ISW

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