On 31 August 2026, the annual NATO international maritime unmanned systems experimentation exercise REPMUS began, involving Estonian Defence Forces personnel for the first time as active participants. The exercise focuses on testing unmanned and autonomous maritime systems to support real naval missions such as maritime surveillance, situational awareness, mine countermeasures, and underwater infrastructure protection. Estonia deployed a seven-member team from the Navy and the Future Capabilities and Innovation Command. Estonia aims to assess and integrate new technologies with existing naval capabilities and ensure compatibility with allied systems. The exercise runs until 25 September 2026. REPMUS also strengthens cooperation with defense industry and accelerates adoption of innovative solutions in unmanned maritime operations. Estonia previously participated as observer in 2025.

On 31 August 2026, the annual NATO international maritime unmanned systems experimentation exercise REPMUS began, involving Estonian Defence Forces personnel for the first time as active participants. The exercise focuses on testing unmanned and autonomous maritime systems to support real naval missions such as maritime surveillance, situational awareness, mine countermeasures, and underwater infrastructure protection. Estonia deployed a seven-member team from the Navy and the Future Capabilities and Innovation Command. Estonia aims to assess and integrate new technologies with existing naval capabilities and ensure compatibility with allied systems. The exercise runs until 25 September 2026. REPMUS also strengthens cooperation with defense industry and accelerates adoption of innovative solutions in unmanned maritime operations. Estonia previously participated as observer in 2025.