Russia has begun using long-range fiber-optic drones, which are practically immune to signal jamming, to attack Ukraine's logistics routes, First Deputy Prime Minister of Ukraine and Minister of Digital Transformation Mykhailo Fedorov said in a comment to Business Insider. According to him, the new drones have a range of up to 50 km, which exceeds the performance of most known fiber-optic drones on the battlefield. "It really affects our logistics," Fedorov said, emphasizing that this is the