Ukraine says that its forces had carried out a large-scale overnight drone assault targeting military and infrastructure sites inside Russia and Russian-occupied territory.In a Telegram post on May 30, Ukrainian President Volodymyr Zelensky said another Russian oil-sector facility had been struck in Armavir, in Russia's Krasnodar region, about 500 kilometers from the Ukrainian border."It is entirely fair that we are bringing the war back to where it came from," Zelensky wrote, describing the operation as part of Ukraine's campaign of "long-range sanctions" against Russian military and energy targets.Earlier on May 30, Commander Robert “Madyar” Brovdi of Ukraine's Unmanned Systems Forces said that a coordinated operation struck 23 military and strategic targets.He said Ukrainian forces struck multiple targets in the Taganrog area of Russia's southern Rostov region, destroying a tanker from Moscow's shadow fleet, which is used to transport sanctioned oil, as well as an Iskander tactical missile system and two Tu-142 anti-submarine aircraft.Russian officials confirmed a drone attack on the Taganrog port area, reporting fires that damaged a commercial tanker, a fuel storage tank, and an administrative building.Russian authorities also reported attacks in the border region of Belgorod. Governor Alexander Shuvaev said Ukrainian forces carried out 55 attacks over the previous 24 hours, killing three civilians and injuring three others. He said the strikes involved drones, artillery, and aircraft.The claim could not be independently confirmed.In occupied Crimea, drones also reportedly struck the Marine Oil Terminal in Feodosia, a key refueling hub for Russian forces on the peninsula. Residents reported heavy anti-aircraft fire followed by explosions and a large blaze at the site.