.Ukraine carries out one of its biggest-ever drone strikes on Russia CNNUkraine Hits Moscow Oil Refinery in Gigantic Drone Plethora The Wall Street JournalUkraine dispatches large drone strike on Russian electricity facilities The Washington PostRussia Hits Kharkiv Sports Midpoint After Moscow Refinery Fire BloombergFirefighters Extinguish Oil Depot Blaze in Southern Russia 2 Weeks After Drone Strike The Moscow Moments.