EDA Selects Five Finalists for EU Loitering Munition Challenge

The European Defence Agency (EDA) has selected five companies to advance to the operational testing phase of its Sentinel Strike Challenge, a €2 million initiative designed to evaluate European loitering munition systems under realistic military conditions. The finalists will demonstrate their platforms during the EU Operational Experimentation Campaign 2026 (OPEX26) at Portugal's Santa Margarida Military Training Area later this year, with overall winners expected in 2027. 

More than 140 organizations from across Europe submitted expressions of interest for the competition, highlighting the growing pace of investment in loitering munition technologies following lessons from recent conflicts. Rather than leading directly to procurement, the challenge is intended to provide European armed forces with comparable operational data that can support future capability development decisions. 

Five companies move into operational testing

Following the first-stage technical assessment, EDA selected:

• Helsing (Germany)
• Destinus (Netherlands)
• C-Astral (Slovenia)
• UAVision (Portugal)
• Spirit Aeronautical Systems (Greece)

Each finalist receives a €30,000 Stage 1 prize and will compete for a share of €1.8 million during the operational experimentation phase. 

EDA also recognized five additional companies with Stage 1 awards of €10,000 each: Renegade UxS (Denmark), Robotto (Denmark), Cerberon Defence Systems (Germany), THALES LAS (France), and ALTUS LSA (Greece). 

Portugal becomes Europe's battlefield laboratory

The second stage will take place during OPEX26, hosted jointly with the Portuguese Army's ARTEX26 technology experimentation exercise. The campaign will evaluate complete loitering munition systems under controlled but operationally realistic conditions, allowing military users from EU member states to compare performance across identical scenarios. 

According to EDA, evaluators will examine the entire mission cycle, including mission planning, launch, target detection, tracking, engagement, resilience, and post-strike assessment. Eligible systems are limited to Class I aerial loitering munitions with a maximum takeoff weight of 25 kilograms and an operational range of up to 40 kilometers. 

Building evidence instead of launching procurement

EDA emphasizes that advancement to the final stage does not constitute procurement qualification or guarantee future contracts. Instead, the Sentinel Strike Challenge is structured as a prize competition that produces standardized operational evidence for European defense ministries considering future acquisitions or multinational capability projects. 

The initiative reflects a broader shift in European defense innovation toward operational experimentation before procurement. Through the Hub for European Defence Innovation (HEDI), EDA has increasingly focused on testing emerging technologies in realistic military environments, enabling member states to compare competing systems using common evaluation criteria rather than relying solely on technical documentation. 

For the five finalists, OPEX26 will provide an opportunity to demonstrate how their systems perform in contested operational scenarios while giving European military users practical data that could influence future capability planning across the continent.