.Ukraine performs some of its own biggest-ever drone assaults on Russia CNNUkraine Attacks Moscow Oil Refinery in Huge Drone Plethora The Exchange JournalUkraine launches gigantic drone strike on Russian electricity commercial infrastructure The Washington PostRussia Strikes Kharkiv Athletics Middle After Moscow Refinery Fire BloombergFirefighters Extinguish Oil Depot Blaze in Southern Russia 2 Weeks After Drone Strike The Moscow Times.