CYBERUNITY targets the second objective of the DIGITAL-ECCC-2022-CYBER-03-CYBER-RESILIENCE -EU Cybersecurity Resilience, Coordination and Cybersecurity Ranges topic in the Call. Its main goal is to build an interoperable community of Cyber Ranges in Europe, initially by bringing together the cyber ranges owned and operated by the partners in the consortium, whilst “opening” the cyber range interoperability specifications for building and expanding a thriving community of cybersecurity experts, researchers and professionals. CYBERUNITY aims to contribute to the aim of making Europe a world leader, by developing open interoperability specifications and providing the first interoperable cyber range infrastructure. Building upon these, and upon additional components and interfaces to be developed and integrated within the project, the concept of the “Cyber-Range-as-a-Service” (CRaaS) will be realized. Additionally, the first overarching Knowledge Repository for cyber ranges will be developed. CYBERUNITY will deploy a secure framework that enables cross-organisation and cross-border trustworthy and privacy-compliant integrated cyber range services, whose capabilities will be demonstrated by means of several cross-border scenarios involving systems in critical sectors. During the lifecycle of the project, it is estimated that about 2000 cyber defenders from all regions of Europe, including those less equipped with a unified cyber range facility external users will benefit from CYBERUNITY.