Russian forces gained 0.67% of Ukraine's territory in 2025, equivalent to 4,075 square kilometers, with control over Donetsk oblast increasing to 78.29% from 72.11% a year earlier, according to an analysis compiled by X user PeurAvion and shared during the 29-minute reporting window ending at 2:15 PM UTC on January 2, 2026. PeurAvion's data indicates Ukraine holds 79.4% of its territory, Russia occupies 19.4%, and 1.2% remains a grey zone not clearly controlled by either side, with major advances concentrated in Donetsk but distributed across six Ukrainian regions. The analysis reminds that Ukraine's strongest defenses lie ahead, heavier than those at Pokrovsk, Chasiv Yar, or Toretsk. In related Ukrainian military equipment updates during the same window, the British-supplied Raven surface-to-air missile system in Ukrainian service has achieved over 100 kills against Russian drones and cruise missiles, as reported by X user Osinttechnical.
