In the early hours of 5 September, footage of a Rosneft refinery on fire in the central Russian city of Ryazan appeared on social media. Several Ukrainian drones had struck the plant, one of Russia’s largest oil refineries, which processed over 13 million tonnes of crude oil last year. The Armed Forces of Ukraine (AFU) had clearly intended to disable the refinery, which is located just over 450 kilometres from the Ukrainian border.