257 Combat Engagements in 24 Hours — 1,150 Russian Losses; Kharkiv and Donetsk Sectors Most Active

Ukraine's General Staff reported 257 combat engagements in the 24 hours ending May 15, 2026 — a significant rise from the 187 engagements on May 14 — reflecting intensified Russian assault pressure across multiple axes following the collapse of the brief ceasefire. Key hotspots: Kharkiv axis (14 Russian attacks near Vovchanski Khutory, Lyman, Ternove, Radkivka, Izbytske); Kupiansk axis (4 attacks near Kurylivka, Novoplatonivka, Pishchane); Lyman axis (8 breakthrough attempts near Drobysheve, Ozerne, Yampil, Dibrava, Stavky); Donetsk/Toretsk axis (28 attacks near Kostiantynivka, Toretske, Ivanopillia, Illinivka). Russian losses for the day: 1,150 personnel killed or wounded; 4 tanks; 12 armored vehicles; 32 artillery systems; 1,780 UAVs; 41 missiles; 185 vehicles destroyed. Cumulative Russian personnel losses reached approximately 1,346,390 per the Ukrainian General Staff. Russia continued strategic bombardment of rear areas with airstrikes and drone waves while maintaining ground pressure across the eastern and southern fronts.