The history of weapons development shows that advances in offense are followed by advances in defense. The Leonidas system uses an EMP to disable swarms of drones.
Electromagnetic weapon zaps drone swarm in seconds
https://www.axios.com/2025/08/28/epirus-indiana-drone-swarm-demo-leonidas
Defense contractor Epirus this week demonstrated its drone-frying Leonidas to observers from various U.S. military services and foreign countries, including some in the Indo-Pacific…
In the climax of the two-hour show, Leonidas went up against 49 quadcopters, among the largest grouping it’s ever faced. The “forcefield system,” which weaponizes electromagnetic interference, crippled all of them at once.
DB2