[Explosive fiber-optic drones widely used in Ukraine]

Hezbollah has increasingly turned to explosive fiber-optic drones, a low-cost weapon first widely used in Ukraine and now spreading to other battlefields. Guided by thin cables instead of radio signals, the drones are difficult for Israel to jam, and Israeli officials say they have become a persistent threat to troops in southern Lebanon.

AI Overview

As of May 2026, Hezbollah is increasingly deploying low-cost, explosive fiber-optic drones to target Israeli troops in southern Lebanon and along the border. These drones, which gained prominence in the Ukraine war, are considered a major challenge to Israeli defense systems because they cannot be stopped by electronic jamming. 

Key Aspects of the Fiber-Optic Drone Threat

• Jam-Proof Technology: Instead of radio signals or GPS, these First-Person View (FPV) drones are guided by a thin, spooling fiber-optic cable that connects them directly to the operator. This makes them immune to conventional electronic warfare techniques. 
• Persistent Threat to Troops: Israeli officials and military analysts describe these drones as a "persistent" and "deadly" threat to soldiers and vehicles in southern Lebanon. 
• High-Res Targeting: The cables allow the operator to receive a high-resolution, live video feed of the target without emitting a detectable radio signal. 
• Low-Cost, Local Production: The drones are inexpensive, estimated to cost roughly $300 to $400 each, and are believed to be manufactured locally by Hezbollah, utilizing 3D printing and consumer-grade electronics. 
• Operational Tactics: These drones can fly low and fast, making them difficult to detect. They can also land and wait in ambush. 

Israeli Defense Response

• Defensive Measures: The IDF is countering this threat by adding passive physical barriers, such as nets and cages, to vehicles and troop gathering points, a method reminiscent of tactics used in Ukraine. 
• Technological Challenges: Former Israeli air defense heads have noted that detecting and tracking these small, fast drones is extremely difficult, and traditional air defense systems focused on rockets have struggled to adapt to this threat. 
• New Strategies: The Israeli military has appointed a senior officer to lead efforts to counter this threat and has issued calls for new technology to detect and neutralize fiber-optic drones. 

According to reports from late April and early May 2026, these drones have been responsible for casualties among soldiers and contractors in the region.