Operation Spider's Web was a covert drone attack carried out by the Security Service of Ukraine (SBU) deep inside Russia on 1 June 2025, during the Russo-Ukrainian War. The coordinated strikes targeted the Russian Air Force's Long-Range Aviation assets at five air bases—Belaya, Dyagilevo, Ivanovo Severny, Olenya, and Ukrainka—using drones concealed in and launched from trucks on Russian territory.