U.S. Tempest Sentinel Air Defense System Uses Low-Cost Missiles to Protect Bases From Drone Attacks.

U.S. defense company V2X is presenting its Tempest Sentinel air defense system, equipped with low-cost CLARK interceptor missiles, to protect military bases against drone attacks. Designed for deployment around military installations, the system combines fixed missile launchers with mobile counter-drone capabilities, creating a layered defense network intended to intercept aerial threats approaching from multiple directions.

The V2X Tempest Sentinel air defense system displayed at AUSA 2026 in Washington, D.C., features a four-rail launcher designed to fire low-cost CLARK interceptor missiles against drone threats as part of a layered defense network protecting military bases.  (Picture source: Army Recognition Group)

The presentation comes as the U.S. military seeks to develop more affordable interception capabilities in response to the growing use of drones on modern battlefields. Rather than relying exclusively on expensive surface-to-air missiles, V2X is developing a defensive architecture combining fixed-site protection, mobile counter-drone systems, and adaptable interceptors. The objective is to establish multiple defensive positions around military facilities while maintaining the ability to respond to threats approaching from different directions.

The Tempest Sentinel, presented by V2X at AUSA 2026 in Washington, is designed to detect, engage, and defeat Group 2 and Group 3 unmanned aerial systems during day and night operations, including in adverse weather conditions. The system features a four-rail launcher and can be deployed in either a towable or fixed configuration, allowing operators to establish multiple defensive positions around air bases, command centers, ammunition depots, and logistics facilities.

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The interceptor associated with this configuration is the CLARK missile, developed by VoltX and presented at AUSA 2026 as a prototype currently undergoing accelerated testing. Powered by a solid-propellant rocket motor, CLARK incorporates an AI-enabled seeker designed to identify, track, and lock onto aerial targets. According to the manufacturer's stated specifications, the missile has an engagement range of five miles, approximately eight kilometers, and can reach a maximum speed of Mach 0.9. These characteristics make it suitable for short-range interception missions against relatively small aerial threats.

Cost is another aspect of the program. VoltX advertises a starting price of $50,000 per interceptor, depending on configuration, which is considerably lower than the cost of many conventional air defense missiles. Its modular architecture allows different payloads, sensors, and propulsion systems to be integrated according to operational requirements. The company also emphasizes compatibility with existing rail and vehicle launchers, reducing the need to develop new launching infrastructure for each deployment.

CLARK is currently being developed to intercept Group 2 and Group 3 drones, while VoltX plans to expand its capabilities against more demanding targets, including jet-powered drones and cruise missiles. Its architecture relies on multiple artificial intelligence models for target acquisition and tracking, while an open flight-control system facilitates future modifications. The manufacturer has not specified the warhead configuration or published detailed engagement results, although the prototype is undergoing testing intended to validate its performance.

The concept involves deploying several Tempest Sentinel launchers around the perimeter of a military base to create partially overlapping defensive sectors and allow commanders to distribute interceptors according to the expected directions of an attack. Each launcher carries four ready-to-fire missiles, providing an initial interception capacity that can be distributed across multiple positions. Combined with centralized fire control and remote operation, this arrangement is intended to reduce personnel exposure while improving engagement coordination against drones approaching protected facilities.

This configuration, designed for the protection of fixed installations, is also intended to complement V2X's mobile Tempest counter-UAS vehicles, which can reposition alongside maneuvering forces or reinforce threatened areas. On September 8, 2026, the company announced a $19 million contract with the U.S. Marine Corps covering Tempest vehicles and associated support services. Although the contract concerns the mobile version rather than Tempest Sentinel, both systems illustrate V2X's approach to combining mobile counter-drone capabilities with more persistent protection of military infrastructure.

This approach also allows counter-drone capabilities to be integrated with other surveillance and security systems offered by V2X, creating a more comprehensive protection architecture around military installations. In such a configuration, detection equipment, command-and-control systems, fixed launchers, and mobile interceptors contribute to identifying threats and coordinating defensive responses. The effectiveness of this arrangement depends on sensor coverage, target identification, communications, and engagement coordination, particularly during simultaneous attacks involving multiple drones.

The development of Tempest Sentinel and the CLARK missile reflects a broader reassessment of air defense requirements among the United States and its allies. Conflicts in Ukraine and the Middle East have demonstrated how relatively inexpensive drones can impose considerable financial and operational pressure on conventional defensive systems. By combining launchers distributed across multiple positions, lower-cost interceptors, and mobile counter-UAS assets, V2X is developing an architecture intended to improve the protection of military infrastructure without relying exclusively on high-end missile batteries. As NATO countries continue to expand their defenses against unmanned aerial threats, such solutions could provide an additional defensive layer for military bases, deployed forces, and strategic infrastructure against increasingly complex aerial attacks.

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Written By Erwan Halna du Fretay - Defense Analyst, Army Recognition Group
Erwan Halna du Fretay holds a Master’s degree in International Relations and has experience studying conflicts and global arms transfers. His research interests include security and strategic studies, particularly the dynamics of the defense industry, the evolution of military technologies, and the strategic transformation of armed forces.