Ukraine’s Unmanned Systems Forces (USF) said they struck 11 more Russian vessels in the Sea of Azov overnight, bringing the total number of ships reportedly hit to 116 in just nine days. “+11 overnight on July 14. A total of 116 vessels have been hit by USF Birds in the Sea of Azov over nine days as part of Operation MoLoChKa [Dairy]: five tankers, five dry cargo ships, and one tugboat,” USF Commander Robert “Madyar” Brovdi wrote on Telegram.JOIN US ON TELEGRAMFollow our coverage of the war on the @Kyivpost_official. He also published footage purporting to show Ukrainian drones striking Russian vessels in the Sea of Azov. Kyiv Post could not independently verify the time or location of the video. According to Brovdi, the operation is aimed at crippling Russia‘s feeder fleet – small and medium-sized flat-bottomed tankers about 140 meters (460 feet) long with a deadweight of roughly 7,000 tons. He said these vessels form a key part of Russia’s so-called shadow fleet, transporting oil through the Volga-Don Canal and the Sea of Azov from Russian ports and oil terminals to larger tankers waiting in the Black Sea. Because deep-draft tankers cannot enter the shallow ports, they are loaded offshore by feeder vessels. According to Brovdy, a single large tanker typically receives oil delivered by 12 to 15 feeder tankers. “The burning of these wormy (Russian) camel tankers – and the tugboats that stubbornly tow them after they are damaged – also limits deliveries of scarce gasoline to Crimea through the narrow, shallow waters of the Sea of Azov,” Brovdi wrote.