Army

US Army Eyes Lightweight Air Defense System for Drone Threats in Future Battles

The Army is developing a lightweight, mobile air defense system to protect light infantry from drones and aircraft in fast-moving battles.

M-SHORAD systems mount missiles, rockets, guns, and sensors on a Stryker A1, providing layered air defense for maneuver forces. (Image Credit: DVIDS)

The US Army is rethinking how it protects its lightest forces. Not with heavier armor or bigger vehicles, but with something smaller, faster, and far more flexible. The service wants a mobile short-range air defense system that light infantry can actually bring into the fight. That means no hulking platforms. No equipment that gets left behind when troops deploy by air.

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Instead, the Army is looking at sled- or pallet-mounted weapons that can move with dismounted forces during joint forced entry operations. Airborne assaults. Rapid insertions. The kind of missions where every pound matters and every delay can cost lives.

The SLED Concept Takes Shape

The effort falls under Maneuver Short Range Air Defense Increment 4, or M-SHORAD Increment 4. A recent Request for Information (RFI) lays out the vision. The deadline for industry responses is April 6.

At the center of the concept is a Self-Loading Equipment Dock, or SLED. Think of it as a modular pallet packed with firepower. It can be mounted on light vehicles, such as the Infantry Squad Vehicle, or on unmanned platforms, such as the Robotic Combat Vehicle.

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But the key detail is flexibility. The Army wants the SLED to function independently. Units can mount it, move it, then dismount it without losing capability. The vehicle goes back to its primary role. The air defense system keeps working.

“The SLED may be carried by the vehicle, but it must maintain independent functionality,” the RFI noted. “Vehicles must be returned to complete functionality after removal of the SLED.”

Lessons from a Drone-Dominated Battlefield

That design reflects a hard lesson from recent conflicts. Air threats are no longer limited to jets and helicopters. Small drones now dominate the low-altitude fight.

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They scout. They strike. They swarm.

Light infantry units often face those threats without adequate protection. M-SHORAD Increment 4 aims to close that gap.

The system is designed to counter Group 1 to 3 drones, along with fixed-wing aircraft and helicopters providing close air support.

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Layered Defense, Tight Constraints, and a Push for Mobility

The Army is blending kinetic and non-kinetic tools into a single system.

On the kinetic side, options include Stinger missiles and the Next Generation Short Range Interceptor. Precision-guided rockets like the Advanced Precision Kill Weapon System are also under consideration. Guns remain part of the mix. The XM914 30mm cannon offers compact firepower, backed by .50-caliber and 7.62mm machine guns.

Electronic warfare systems will disrupt incoming drones. Sensors will detect and track threats. The goal is a layered defense that can engage early and often.

Fitting all of that onto a lightweight platform is no small task. Size, weight, and power constraints will shape every decision. The Army acknowledges the tradeoffs. Packing missiles, guns, sensors, and electronic warfare gear into a compact system pushes the limits of current technology.

That is why modularity is central to the design.

The Army is pushing for a Modular Open Systems Approach (MOSA). Components must be adaptable and swappable. Systems must evolve without a complete redesign.

This effort builds on earlier M-SHORAD increments. Increment 1 mounted missiles and a cannon on a Stryker vehicle. Increment 2 explored directed energy before being canceled. Increment 3 will upgrade existing systems with improved interceptors and firepower.

Increment 4 breaks from that model. It strips the concept down to mobility and flexibility, focusing on systems that can move with light infantry in contested environments.

The system must meet strict mobility requirements. It must be transportable by C-130 aircraft. Air droppable. Sling-load capable. It must go wherever light infantry goes, without slowing them down.

That reflects a broader shift in Army thinking.

Future conflicts may demand rapid deployment into contested zones where air superiority is not guaranteed. Small units will need to operate independently, with their own protection against aerial threats.

A Race Against the Threat

The Army aims to field the system between 2027 and 2029. To move fast, it plans to rely on existing technologies with high readiness levels. Future upgrades will follow through modular integration and competition.

The urgency is clear.

Drones are cheap, adaptable, and everywhere. They have reshaped battlefields from Eastern Europe to the Middle East. For light infantry, they are a constant threat overhead.

The Army’s answer is not heavier armor, but smarter design.

A pallet. A modular system. A layer of protection that moves at the speed of the fight.

If it works, it could give small units a fighting chance in a sky that is no longer theirs to control.

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