Keyword: critical undersea infrastructure (CUI)
![A US Coast Guard Legend class National Security Cutter (foreground) and a US Navy (USN) Arleigh Burke class destroyer sail in the Taiwan Strait in 2021. The USN’s future surface force structure will include a core of Arleigh Burkes, small and large crewed combatants, and uncrewed vessels. [Source: US Navy]](https://euro-sd.com/wp-content/uploads/2026/03/1-ESD-USN-FF-NSC-USN-Kopie-324x160.jpg "USN needs new ‘boots on maritime ground’, quickly")
USN needs new ‘boots on maritime ground’,...
The United States Navy (USN) is well underway with the process of recapitalising its...
![NATO ships from SNMCMG1 sail in the Baltic Sea in November 2025. NATO’s SNMG1 and SNMCMG1 task groups have been the at-sea ‘hub’ around which national and NATO responses to the Northern European CUI risk have been built. [Dr Lee Willett]](https://euro-sd.com/wp-content/uploads/2026/01/1-SNMCMG1-FW25-LW-Kopie-324x160.jpg "Northern European seabed operations underline the Alliance’s collective approach to CUI security")
Northern European seabed operations underline the Alliance’s...
The northern Euro-Atlantic theatre is today a stage on which maritime asymmetric activities are...
![The RC-135V/W Rivet Joint is perhaps the most recognisable Western SIGINT aircraft. The aircraft’s comprehensive array of COMINT DF antenna is clearly visible beneath the fuselage, while the distinctive ‘chipmunk cheeks’ at the forward fuselage contain its ‘Automatic Electronic Emitter Locator System’ (AEELS). [Luca Chadwick]](https://euro-sd.com/wp-content/uploads/2025/06/1-Kopie-324x160.jpg "Skybound scanners: Rebuilding Europe’s airborne SIGINT fleet")
Skybound scanners: Rebuilding Europe’s airborne SIGINT fleet
With just 11 SIGINT aircraft currently operational among European NATO members, and growing demand...
The Baltic: A ‘strategic sea’
The Baltic Sea is becoming a significant geographic space in NATO-Russia naval rivalry. For...