Ukraine's Vivaldi counteroffensive reclaims 50 sq km; strikes hit Moscow oil refinery

Ukraine's Vivaldi counteroffensive has recaptured 50 square kilometers, described as one of its most important victories of 2026. Concurrently, Ukrainian long-range strikes reached a major Moscow oil refinery during Russia's State Duma elections, marking a significant escalation in targeting Russian infrastructure. The dual developments signal a shift in Ukraine's operational tempo and strategic reach, though the full military and political impact remains uncertain.