EEAS, EUMS and MPCC participate in the Coalition Warrior Interoperability Exercise 2026 (CWIX 26)
The team represented the largest EEAS participation in the exercise to date, demonstrating the commitment to strengthening interoperability and validating the ability of EU systems to operate effectively in a multinational environment.
CWIX, led by Allied Command Transformation (ACT), is NATO’s flagship interoperability event for assessing, testing and validating interoperability among Allied and Partner capabilities prior to their employment in multinational operations. The 2026 edition brought together more than 4,000 participants from 41 NATO and Partner Nations and Organisations.
The effectiveness of international cooperation in the security field is measured by the ability to work together. As security challenges become more interconnected and technology-driven, success increasingly depends on the seamless exchange of information, the compatibility of systems, and the coordination of people and processes. Interoperability is what transforms cooperation from a political commitment into an operational capability.
The successful participation in CWIX 26 further enhanced the interoperability of EU Member States and EEAS’ Command and Control (C2) systems, together with NATO and EU Partner Countries C2 systems, confirming their ability to exchange information effectively in a multinational operational environment and providing the MPCC with a solid foundation for the conduct of EU military CSDP Operations.
During CWIX 26, the EEAS team conducted a comprehensive programme of interoperability testing and technical validation across multiple capability areas. Activities included the verification of compliance with Federated Mission Networking (FMN) interoperability standards, cyber defence assessments, security and cryptographic interoperability testing, and the validation of information exchange across multiple operational domains, including space and CBRN. These activities increased confidence in the ability of the systems to interoperate within a multinational environment, reduced technical and procedural risks, and contributed to improving the overall operational readiness of our capabilities.
EUMS