.Ukraine accomplishes some of its own biggest-ever drone assaults on Russia CNNUkraine Attacks Moscow Oil Refinery in Substantial Drone Onslaught The Commercial JournalUkraine launches gigantic drone strike on Russian energy structure The Washington PostRussia Attacks Kharkiv Athletics Core After Moscow Refinery Fire BloombergFirefighters Extinguish Oil Depot Blaze in Southern Russia 2 Weeks After Drone Strike The Moscow Moments.