Following the publication of NATO’s “Overarching Space Policy” and the declaration of Space as an Operational Domain in 2019, this branch was established in 2020. NATO’s dependence on Space systems implies the need to ensure that resources and capabilities are available during all operational phases. The lack of Space capabilities and products could hamper the success of NATO operations.

Our Space branch supports coordinating the Global Programming Process for the best available education and training regarding needs defined by the Bi-SC directives, led an Annual Discipline Conference for Space and prepared the implementation of the Space Domain within NATO. More specifically, we not only provide support in functional areas of space (PNT, ISR, METOC, SSA, SATCOM and MD) but also offer multinational expertise to key decision-makers for effective solutions on Space Power challenges, in order to safeguard the Alliance.

Branch Head

Lieutenant Colonel
Joint Air Power Competence Centre

Lieutenant Colonel Grest is currently serving in the C4ISR+S Branch as a Space SME. In 1982 he began his military career as a conscript. In previous appointments, he has been working in various command and staff positions in the area of Surface-Based Air and Missile Defence as well as in different national staff positions. He was deployed to the NATO mission in Afghanistan at ISAF HQ. Lieutenant Colonel Grest holds a diploma in business administration from the Bundeswehr University Hamburg.

Information provided is current as of February 2022

Featured Publications

Developing an Operational Framework to Enable Interoperable Allied NATO Responsive Space Activities

Space Capabilities that are Allied by Design
With NATO facing a contested space domain, members have begun exploring responsive space capabilities that enable rapid deployment of space assets providing critical Data, Products, and Services (DPS). As explained by US Army General James [...]

Deterrence in the Space Domain

Increasing Deterrence in Space by Gaining a Mindset for Agile Space Operations
At Brussel’s NATO Summit in 2020, NATO Secretary General Jens Stoltenberg launched the #NATO 2030 effort remarking that ­‘resilience – be it infrastructure, telecommunications, 5G or healthcare, access to protective equipment – all of that [...]

Thresholds in Cyber and in Space

Lessons Learned from State Positions on the Application of International Law to Cyber for the Evolving Space Domain
On January 17th of 2022, NATO published its ‘Overarching Space Policy’, with almost identical wording: ‘(…) Allies agreed that attacks to, from, or within space present a clear challenge to the security of the Alliance, [...]

Subject Matter Expert


Arda Ayan

Subject Matter Expert 

Major Arda Ayan has graduated from the Turkish Air Force Academy in 2005 with a Bachelor’s degree in Computer Engineering and was stationed as a SHORAD (Short Range Air Defence) officer at 6th Main Jet Base Anti-Aircraft Battalion Command. During his 8 year service there, he served both as platoon...


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