US develops counter‑drone systems for cheap swarming attacks focus

Published: March 3, 2026 . The English Chronicle Desk . The English Chronicle Online

The United States appears to be adjusting to a new paradigm in warfare as low‑cost swarming drones — inexpensive, mass‑produced unmanned aerial systems capable of coordinated attacks — proliferate across conflict zones. In response, the Pentagon and Defence Department are fielding a suite of counter‑drone capabilities designed to neutralise large numbers of affordable autonomous threats that could otherwise overwhelm traditional defences reliant on costly missiles and manned aircraft.

A key component of the U.S. response are directed energy and high‑power microwave systems that can disable drones’ electronics en masse. The Tactical High‑power Operational Responder (THOR) microwave weapon, developed by the U.S. Air Force Research Laboratory, emits bursts of high‑power microwaves to disable multiple unmanned aerial vehicles (UAVs) in a swarm almost instantly — a significant shift from traditional kinetic interceptors that engage one target at a time. These systems are transportable, more cost‑effective per engagement than missiles and can be deployed rapidly to defend bases or critical infrastructure against coordinated aerial threats.

On the ground and at sea, mobile counter‑unmanned aerial systems (C‑UAS) are also being fielded. One such example is the Military’s Mobile‑Low, Slow, Small Unmanned Aircraft Integrated Defeat System (M‑LIDS), which combines advanced radar, electronic warfare and kinetic interceptors to detect, track and neutralise low‑flying drones. These integrated C‑UAS platforms represent layers of defence that augment radar and sensor networks with real‑time threat mitigation across multiple types of threats.

Beyond directed‑energy and integrated systems, the U.S. Army and other services have developed interceptor UAVs that effectively act as counter‑drone assets. Systems like the Merops counter‑UAS platform launch interceptor drones — relatively cheap at roughly $15,000 per unit — which can autonomously home in on hostile drones and disable them with onboard sensors or kinetic effectors. This approach harnesses automation and artificial intelligence to match the autonomy and scalability of drone swarm threats with comparable defensive agility.

The emphasis on affordable countermeasures reflects lessons learned from recent conflicts where small, inexpensive attack drones have reshaped battlefield dynamics. Adversaries have used low‑cost loitering munitions, such as Iran’s Shahed‑style drones, to saturate air defences and force disproportionate expenditure on interceptors. In turn, the U.S. military formed units like Task Force Scorpion Strike, employing its own low‑cost loitering munitions known as LUCAS to integrate affordable attack drones into offensive operations — demonstrating a shift towards “cost‑of‑entry” weapons that parallel adversaries’ capabilities.

Defence analysts emphasise that countering swarming tactics requires a multilayered, adaptive approach. Directed energy weapons like THOR and high‑power microwave systems can neutralise multiple threats simultaneously, reducing reliance on expensive missiles. At the same time, integrated counter‑UAS networks and interceptor drones bring flexibility and scalability to the defensive posture, ensuring that even a flood of inexpensive drones can be detected, tracked and defeated without prohibitive cost. This layered defence paradigm acknowledges that swarming drone attacks are not a single technical problem but a complex operational challenge requiring diversified responses.

The development and deployment of these systems mark a significant evolution in how the U.S. military prepares for and counters emerging threats in the era of unmanned warfare. By moving beyond traditional air defence frameworks and investing in affordable, scalable technologies, the United States aims to blunt the tactical advantages conferred by cheap drone swarms while maintaining overall battlefield resilience. Detailed operational data on these systems’ performance in active defence scenarios remains limited, but military officials assert that layered counter‑drone capabilities now give U.S. forces tangible options against coordinated inexpensive aerial threats.

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