Ukraine’s Unmanned Systems Forces (USF) have struck 159 vessels linked to Russia’s so-called shadow fleet in just 12 days, including 12 vessels hit overnight, according to USF Commander Robert “Madyar” Brovdi.In a post on Telegram on Thursday, Brovdi said the campaign, dubbed Operation “Molochka” (Dairy), continues to target Russian maritime logistics used to transport oil, fuel, and cargo in circumvention of international sanctions.JOIN US ON TELEGRAMFollow our coverage of the war on the @Kyivpost_official.“FLEETDROP continues: 159 vessels in 12 days of Operation ‘MoLoChKa.’ +12 shadow fleet vessels hit by USF Birds in the Black Sea on July 17: nine dry cargo ships, one tanker, one gas carrier, and one tugboat,” Brovdi wrote.According to him, Ukrainian forces struck 159 vessels between July 6 and July 17, including 117 in the Sea of Azov and 42 in the Black Sea.He said the operation aims to cripple Russia’s maritime logistics without causing environmental disasters.“The goal is the irreversible paralysis of oil, fuel, and cargo logistics used to bypass sanctions. We want every self-propelled vessel to become a drifting barge – blind and deaf. The objective is not to pollute the sea with oil spills, so we are not sinking them,” he wrote.Brovdi added that evidence of the reported strikes would be released later.Earlier, USF commander said the operation is designed to cripple Russia’s feeder fleet – small and medium-sized flat-bottomed tankers, typically about 140 meters (460 feet) long with a deadweight of around 7,000 tons.