.Ukraine executes some of its biggest-ever drone strikes on Russia CNNUkraine Attacks Moscow Oil Refinery in Massive Drone Assault The Wall Street JournalUkraine dispatches large drone assault on Russian energy commercial infrastructure The Washington PostRussia Strikes Kharkiv Sports Middle After Moscow Refinery Fire BloombergFirefighters Extinguish Oil Depot Blaze in Southern Russia 2 Weeks After Drone Strike The Moscow Moments.