Ukrainian forces struck a Russian Nebo-M radar system using U.S.-supplied ATACMS missiles, Ukraine's General Staff reported on Oct. 3.The Nebo-M, valued at about $100 million, is designed to detect and intercept aerial threats, including ballistic missiles.Ukraine's military said the radar's destruction would open an "air corridor" for more effective use of Storm Shadow and Scalp-EG cruise missiles.Russia is believed to have only 10 operational Nebo-M systems remaining, though the Kyiv Independent could not verify this claim.Earlier this year, Ukraine's Security Service (SBU) targeted a modernized  Nebo-U radar system in Russia's Bryansk Oblast, according to an SBU source.Ukraine war latest: Ukrainian forces withdraw from Vuhledar in Donetsk OblastKey developments on Oct.