Ukraine cutting Putin's war chest with attacks on Russian energy facilities

After two winters of attacks on its energy infrastructure, Ukraine has launched a number of retaliatory strikes within Russia's borders.

Russia has inflicted an estimated £9.5bn in damages on half of Ukraine's civilian energy infrastructure.

However, between 19 and 29 January numerous Russian power stations, oil depots and factories have reportedly been attacked either by Ukrainian drones or Russian anti-Putin partisans.