Ukraine strikes Russian air defense repair plant in Serpukhov, Moscow Oblast

Ukraine's defense forces struck a major Russian defense enterprise in Serpukhov, Moscow Oblast, overnight on October 22, using missiles and drones. The facility specialized in repairing and maintaining air defense systems. The target was the 75th Arsenal, which handles maintenance and overhaul of military equipment, including Buk-M1, Buk-M2, and S-300V air defense systems. The attack triggered missile threat alerts in the area, with damage assessments pending satellite imagery. OSINT researchers previously identified the Serpukhov site as the only confirmed storage base for Russian air defense missile systems. The strike follows recent Ukrainian attacks on Leningrad and Tambov oblasts on October 18 and 20.