Ukraine’s air defense networks repelled a massive, multi-vector aerial assault Saturday night into Sunday morning, May 17, intercepting or electronically suppressing 279 unmanned aerial vehicles (UAVs) out of 287 deployed by Russian forces. The nationwide air raid alerts began around 7:00 p.m. local time on Saturday, with tracking systems identifying high-volume drone swarms launched from six primary bases inside the Russian Federation: Orel, Kursk, Bryansk, Millerovo, Shatalovo, and Primorsko-