Switzerland Conducts Drone Tests in Challenging Flight Environments
Switzerland Prepares for Next Round of Drone Trials
Switzerland’s government-backed Taskforce Drones is set to conduct its next series of Unmanned Aerial Systems (UAS) technical trials in autumn 2026. This follows a December 2025 campaign that tested attack drones and counter-drone systems in challenging terrains across Europe, as reported by JANES.
The initiative is managed by the Federal Department of Defence, Civil Protection and Sport and coordinated through Armasuisse, the national armaments procurement agency. Kai Holtmann, managing director of Taskforce Drones, confirmed the timeline for the upcoming trials on March 2, indicating a structured evaluation cycle for emerging drone technologies that will influence procurement decisions and European defense planning.
Findings from the December 2025 Trials
The December trials took place at the Hinterrhein shooting range in the canton of Graubünden, selected for its difficult terrain, which includes narrow valleys and high-altitude passes. This environment posed significant challenges for the sensor systems being tested.
Holtmann highlighted that the trials revealed issues with target recognition. Automated flight systems that perform well in flat or forested areas struggled to identify targets against backgrounds of patchy snow and rocky mountains. This presents a critical challenge for AI-based target recognition systems, which need to be addressed before deployment in alpine or northern European combat scenarios.
Participating Companies in the Trials
Three companies participated in the December trials: Auterion, Counter Drone Defence Systems, and ENS Dynamics, each offering distinct approaches to drone technology.
- Auterion: A Swiss-American software company founded in Zurich, Auterion specializes in a hardware-agnostic operating system for autonomous drone fleets. Its technology has been utilized in active combat situations, including a Pentagon contract for AI strike kits.
- ENS Dynamics: This Swiss company focuses on counter-drone technology, specifically its WASP air defense system designed to intercept small UAVs at short ranges. The system has been tested under operational conditions to validate its capabilities.
- Counter Drone Defence Systems: While specific details about this company’s technology remain limited, its participation in the trials indicates it possesses relevant capabilities under evaluation.
Rationale Behind Switzerland’s Drone Program
Although Switzerland is not a NATO member, its geographical position in Europe makes it a significant player in the defense technology landscape. The alpine terrain serves as a representative model for conditions found in eastern Europe, benefiting both Swiss procurement and the broader European defense ecosystem.
The Taskforce Drones initiative allows for rapid, structured technical trials that generate operational performance data on competing systems. This approach enables Armasuisse to make informed procurement decisions without committing to full programs before validating the technology in realistic conditions. For smaller defense firms, participation in these trials offers a pathway to credibility and procurement opportunities that are often unavailable through traditional defense contracts.
The upcoming autumn 2026 campaign is expected to introduce more test scenarios and possibly additional industry participants, with a focus on addressing the target recognition challenges identified in the December trials.
Conclusion
The target recognition issues highlighted during the Hinterrhein trials are critical for the future of drone technology in military applications. As many current drone programs rely on camera-based AI, ensuring these systems can operate effectively in challenging environments is essential. Switzerland’s rigorous testing approach provides a valuable framework for identifying and resolving such issues before they impact operational effectiveness.
Photo credits: CDDS, ENS Dynamics, Auterion.