Revolution in drone swarm defense: Leonidas system achieved 100% success rate against 61 drones
- by Patrik Pikola
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The American company Epirus recently presented remarkable results from tests of its Leonidas system, which uses high-power microwaves to neutralize drones. A demonstration on August 26, 2025, showed the technology's ability to destroy an entire swarm of 49 drones with a single electromagnetic pulse.
Historic Demonstration with Perfect Results
During live testing at Camp Atterbury in Indiana, the Leonidas system faced 61 drones in five different operational scenarios. The results were flawless – 100% success in destroying all 61 tested drones. The event culminated in a spectacular finale where a single electromagnetic interference pulse deactivated 49 drones forming a coordinated swarm simultaneously.
Key Test Scenarios:
🎯 Multi-Angle Counter-Swarm Deployment
Two sets of three drones attacked from opposite directions, with Leonidas progressively neutralizing both groups with its redirected microwave beam.
🎯 Selective Targeting
Out of two drones flying in close proximity, at the request of a spectator, only the right drone was destroyed, while the left one was left undamaged. This demonstration showcased the system's software-controlled, precisely managed waveforms.
🎯 Precision Strike
A single drone was neutralized and brought down directly into a predefined safety zone, demonstrating the system's ability to minimize collateral damage.
🎯 Multi-Purpose Deployment
Three drones at different distances were neutralized simultaneously, proving the system's "one-to-many" capability.
Technology Based on Electromagnetic Interference
Leonidas represents an advancement in electromagnetic interference technology. CEO Andy Lowery explains that the system does not use a traditional "death ray" like other systems, but instead creates an intense field of electromagnetic interference around the protected object. When drones enter this field, their electronic systems begin to fail.
The system utilizes gallium nitride (GaN)-based semiconductor components, which allow for high voltage operation with low temperatures and high power density. This technology eliminates the need for vacuum tubes or cooling systems, making Leonidas more compact and reliable.
Key Benefits of the Technology:
- ⚡ Unlimited Ammunition - the system is limited only by its power source
- 💰 Extremely Low Cost Per Shot - just 0.05 cents per hit
- ⚡ Speed of Light - instantaneous action without the need for target tracking
- 🎯 Discrimination Capability - can distinguish between hostile and friendly drones
Strategic Importance for Modern Defense
The demonstration attracted the attention of representatives from the US Department of Defense, other government agencies, and nine allied countries. The interest in the technology is no accident – current threats from drone swarms pose a serious problem for traditional defense systems.
Andy Lowery, CEO of Epirus:
"This is a breakthrough moment for Epirus. We believe that demonstrating our electromagnetic warfare weapon is the most effective way to communicate that Leonidas is the only viable counter-swarm solution for the one-to-many fight. Those who joined us witnessed 61 drones fly – and 61 drones fall."
System Variants for Various Needs
Epirus has developed several versions of the Leonidas system for different applications:
- 🚗 Leonidas Mobile - a vehicle-mounted version integrated, for example, into Stryker vehicles
- 📦 Leonidas Pod - a portable version for heavy drones
- 🚢 Leonidas H2O - a naval variant, one-third the size of the original system
- ⚡ ExDECS (Expeditionary Directed Energy Counter-Swarm) - a compact version for mobile forces
The latest generation of the system, introduced in July 2025, reportedly has more than double the operational range and effectiveness compared to the 2022 system in the same size.
Future Development and Deployment
The US Army has invested significant funds in the development of this technology. Under the IFPC-HPM (Integrated Fires Protection Capability High Power Microwave) program, Epirus was awarded a contract worth $66.1 million in 2023. In July 2025, another contract for $43.5 million followed for second-generation systems.
The successful tests of the Leonidas system represent a significant advance in the fight against the growing threat of drone swarms. With the increasing use of inexpensive drones in conflicts worldwide, systems like Leonidas are becoming crucial for maintaining military superiority and protecting critical infrastructure.
About Epirus:
Epirus was founded in 2018 as a cutting-edge technology company focused on asymmetric national security challenges. The company quickly established itself as a leader in directed energy systems and continues to innovate, changing the paradigms of modern defense.
