On Jan. 5–6, 2026, Ukrainian drones struck Arsenal No. 100 in Russia’s Kostroma Oblast, a major ammunition sorting facility, prompting the evacuation of up to 1,200 residents. The Ukrainian drone strike reached roughly 900 kilometers from Ukraine, with the SBU’s Alpha unit using domestically produced long-range drones. Satellite imagery indicated four impact zones across the Arsenal No. 100 site, and blast waves damaged buildings within a two-kilometer radius. Local authorities reported comprehensive emergency services and prolonged displacement risks. Ukraine’s General Staff said the attack seriously disrupted Russian ammunition logistics. The facility handled redistribution from production plants, amid Russian use of about 120,000 artillery shells monthly. Related strikes hit the Gerkon Plus oil depot in Lipetsk Oblast the same night.
