Key Takeaways

Russia has reportedly been forming a strategic reserve from new recruits since July 2025.
The Russian military command may have assessed that Russia could afford to create a strategic reserve after Russian losses began to decrease in the summer of 2025.
Reports that Russia is creating a strategic reserve further indicate that the Kremlin is not interested in ending its war against Ukraine but remains committed to achieving its war goals on the battlefield and may be preparing for a conflict with the North Atlantic Treaty Organization (NATO).
Russia continues to test the limits of NATO’s air defenses over the Baltic Sea as Russia increases the frequency of its violations of NATO states’ airspace.
Russian forces continue to develop drone technologies to increase the volume and precision of strikes against the Ukrainian near rear to further complicate Ukrainian logistics.
The Kremlin reportedly dismissed former Northern Group of Forces and Leningrad Military District (LMD) Commander Colonel General Alexander Lapin from military service.
Lapin has proven to be an incompetent commander throughout the war against Ukraine, but the Kremlin is likely punishing Lapin now as part of its ongoing campaign to scapegoat and punish high ranking officials for their failure to repel Ukraine’s incursion into Kursk Oblast in August 2024.
Russian forces recently advanced near Kupyansk, Pokrovsk, and Velykomykhailivka.

Institute for the Study of War

https://understandingwar.org/research/russia-ukraine/russian-offensive-campaign-assessment-september-21-2025/