- The United States Marine Corps tested the MADIS air defense system at Fort Irwin, using an XM914 30mm chain gun to destroy an aerial target during live-fire training
- The system is designed to counter low-flying drone threats, with the Marine Corps planning to acquire up to 300 XM914 chain guns for broader deployment
A United States Marine Corps Marine Air Defense Integrated System (MADIS) assigned to the 3rd Littoral Anti-Air Battalion conducted a live-fire engagement at the National Training Center in Fort Irwin, California, in March 2026.
The exercise was carried out by units from the 3rd Marine Littoral Regiment, 3rd Marine Division, as part of ongoing operational training.
The use of MADIS in training underscores efforts to refine short-range air defense capabilities in response to evolving battlefield conditions.
According to the Marine Corps, the MADIS platform deployed during the exercise integrates a range of sensors and weapons on a Joint Light Tactical Vehicle chassis, allowing for mobile air defense coverage. The system employs the XM914 30mm chain gun as part of its counter-unmanned aerial system toolkit, providing rapid-fire engagement capability against drones and other low-altitude threats.
The XM914 chain gun, developed by Northrop Grumman, is chambered for 30×113 mm ammunition and is compatible with multiple munition types, including proximity and self-destruct rounds. These rounds are designed to increase effectiveness against small, fast-moving aerial targets that are difficult to engage with traditional air defense systems.
The MADIS system operates with the Inc 1 command and control software baseline, enabling coordination between sensors and weapons to detect, track, and engage targets. The integration of command systems with kinetic effectors is intended to improve response time and accuracy during engagements.
The platform’s mobility is provided by the Joint Light Tactical Vehicle, which allows the system to maneuver with frontline units and provide air defense coverage in dispersed operations. This approach supports Marine Corps doctrine emphasizing distributed forces operating across wide areas with limited infrastructure.
The live-fire training at Fort Irwin is part of a broader effort to maintain readiness and validate system performance under realistic conditions. Exercises conducted at the National Training Center are designed to simulate complex operational scenarios, including contested airspace and multi-domain threats.