Ukraine's DELTA system confirms NATO compatibility at REPMUS 2026 naval drone exercise

Ukraine's DELTA battlefield management system has confirmed its compatibility with NATO combat systems during the REPMUS 2026 naval exercise, the Ukrainian Defence Ministry said on Telegram on 14 October 2026.

REPMUS stands for Robotic Experimentation and Prototyping with Maritime Unmanned Systems. The ministry describes it as the largest international event for testing how unmanned systems are used in maritime operations. Ukraine took part for the third time.

What the Ukrainian team did

According to the ministry, the Ukrainian team used DELTA to coordinate several tasks together with allies:

• reconnaissance;
• monitoring of the water area;
• manoeuvring;
• tracking of targets;
• simulation of strikes.

The ministry said that every asset that transmitted data under NATO's STANAG 4817 standard was successfully integrated into DELTA. These included aerial, surface and underwater unmanned systems, as well as radars. A STANAG is a NATO standardisation agreement, a common technical specification that lets equipment from different countries exchange information.

The ministry said the result "once again" confirmed that DELTA is compatible with Alliance systems and brought the standardisation of Ukrainian solutions closer.

What is not known

The ministry's post gives no details on where and when the exercise took place, which allied nations or units worked with the Ukrainian team, or how many systems were connected. It also does not say what "strike simulation" involved in practice. The claims come from a single official source and have not been independently verified.

The announcement follows other recent official reports on Ukraine-NATO technology cooperation. RealUA reported on 13 October that the Defence Ministry said NATO and Ukraine's Armed Forces had built two AI tools, one to forecast enemy drone activity and one to rank artillery plans. That claim was also official and unverified.