Russia Launches Fresh Strike Waves; Kyiv on High Alert for 'Systemic' Bombardment — 232 Combat Engagements Recorded — Day 1,557

On May 31, 2026 — Day 1,557 of Russia's full-scale invasion — Russian forces launched fresh strike waves against Ukraine with Kyiv's air defense on high alert. Ukraine's General Staff recorded 232 combat engagements since the start of May 31, indicating continued high-intensity fighting across all front sectors. The Russian Foreign Ministry had warned of upcoming 'systemic strikes' on Kyiv earlier in the week, prompting Ukraine's air defense authorities to maintain emergency posture. Russia's sustained escalation throughout May 2026 — the most intense aerial campaign of the war — has overwhelmed Ukraine's interceptor stockpiles: the period May 23–30 saw the largest single Kyiv attack since 2022 (600 drones + 90 missiles), an Oreshnik IRBM strike, and barrages of 200–291 drones per night. On May 31, continued strikes targeted civilian infrastructure and frontline positions. Kyiv Independent reported Euronews confirmed ongoing drone and missile activity targeting multiple Ukrainian oblasts on May 31. Ukraine's air defense response has been under severe strain as interceptor reserves deplete — a central concern driving Zelensky's urgent White House letter and EU loan tranche activation.