Kyiv Region Accountability: Ukraine’s Prosecutor General says the main organizer of a Russian-strike event near Kyiv that killed 10 has been detained for alleged official negligence, with investigators pointing to missing approvals and a shelter too small and too far from the venue. Long-Range Drone War: A Ukrainian drone strike sparked a fire at Russia’s Tyumen oil refinery, underscoring Kyiv’s push deeper into Russian energy infrastructure. Sumy Under Fire: Russian shelling and drones killed four and injured nine across Sumy communities, including a Nova Poshta driver hit by a drone strike. Romania Tracks Incursions: Romania shot down a second drone in two days near the Ukrainian border, with authorities saying the latest incursion was destroyed by an F-16. Black Sea Energy Disruption: Russia suspended loading at its Sheshkharis oil terminal in Novorossiysk due to drone threats, adding pressure to already strained fuel supplies. Engels Base Fire: Open-source analysts report a fire near Russia’s Engels-2 strategic bomber base, with no official confirmation of an attack. Air Defense Demand Crunch: A CSIS analysis says U.S. Patriot and related interceptor stocks have been heavily depleted by missile and drone wars, driving emergency production plans. Winter Readiness: Ukraine’s Cabinet set the mechanism for using an additional UAH 40 billion for heating-season preparations, with regional resilience plans reviewed.