Russia reports 1.4 million casualties and a stalled offensive in Ukraine. Capture of Kostyantynivka by December 31, 2026 at 85% YES.

CSIS estimates Ukrainian military casualties at 500,000 to 600,000, with combined Russian and Ukrainian losses potentially reaching 2 million by spring

Russia has borne the heavier toll, with 1.4 million troops killed or wounded since it invaded in February 2022