NATO's Critical Undersea Infrastructure (CUI)-Network met on October 20–21, 2026, in Rostock, Germany, bringing together Allies, NATO experts, infrastructure operators, as well as European Union representatives and NATO partner nations.

In the face of rising hybrid threats, the Network addressed practical steps to increase cooperation, including by sharing data, and to implement CUI security strategies successfully. They focused in particular on enhancing operational capabilities and rapid response, building resilience, and strengthening coordination. Members of the network also visited a German private sector exhibition and demonstration featuring cutting-edge technologies, including Uncrewed Surface and Underwater Vessels, Modular Uncrewed Vessels, and Mine Counter Measures assets, designed to enhance detection, monitoring, and response capabilities.

“Data is our means of ensuring real-time situational awareness and strengthening our vigilance.…