Ukraine DELTA system confirms NATO compatibility at REPMUS 2026: service members practice maritime operations
At NATO’s REPMUS 2026 exercise, Ukrainian service members practiced maritime operations using the DELTA combat system. All assets transmitting data in line with NATO standards—including unmanned aerial, surface, and subsurface systems, as well as radars—were successfully integrated into DELTA.
This again confirmed DELTA’s compatibility with NATO systems and brought Ukrainian solutions closer to standardization.
NATO’s REPMUS 2026 exercise: maritime operations training
REPMUS (Robotic Experimentation and Prototyping with Maritime Unmanned Systems) is an annual NATO exercise led by the Portuguese Navy. This year, Ukraine participated in REPMUS for the third time.
During the exercise, partners and Allies practiced the joint employment of unmanned aerial, surface, and subsurface systems and tested interoperability within multinational forces. It is the largest international exercise focused on employing unmanned systems in maritime operations.
The Ukrainian team, which included service members from different services and branches, coordinated its activities through the DELTA combat system.
At REPMUS 2026, Ukrainian specialists trained alongside Allies in:
- reconnaissance;
- maritime area monitoring;
- maneuvering;
- escort and simulated engagement exercises.
During the exercise, Ukrainian service members also shared combat experience with partners, particularly in the employment of unmanned systems in the maritime domain.
DELTA combat system testing results: compatibility with NATO standards
DELTA successfully integrated all assets transmitting telemetry in line with NATO STANAG 4817.
Last year, DELTA served as the primary command-and-control platform at REPMUS 2025. At the time, the system integrated more than 100 unmanned systems across multiple domains.
Following this year’s exercise, the Ukrainian team noted DELTA’s uninterrupted operation under unstable connectivity, as well as the ease of streaming in the Vezha module compared with other platforms.
Ukraine will continue to share its combat experience in employing unmanned systems and strengthen interoperability with the forces of NATO member states.
The Ministry of Defence previously reported that the DELTA combat system records more than 6,600 enemy targets hit every day.
