On January 5 local time, Ukrainian Armed Forces Commander Zaluzhnyi announced on his official social platform that the Ukrainian Armed Forces' drone units have begun using fiber optic FPV drones on the front lines. Zaluzhnyi stated that the application of drone systems on the battlefield is increasing, and the Russian army has also increased the proportion of fiber optic drones, which poses a threat to the Ukrainian army. Fiber optic drones are usually equipped with fine optical fiber spools for transmitting high-definition images and control signals, and their main advantage is a strong resistance to electronic interference.