On July 28, 2021, Ireland became the 27th and final EU Member State to sign the EuroQCI Declaration, completing the full participation of all EU countries in the European Quantum Communication Infrastructure initiative. The European Commission announced that all Member States had committed to working together with the Commission and ESA to build the EuroQCI.
In 2021 and 2022, Digital Europe Programme and Connecting Europe Facility actions began supporting the development of national and cross-border quantum communication networks, European QKD devices and systems, and a testing and certification infrastructure. Discussions on the deployment of the initiative’s space segment were also underway between the Commission, Member States, and ESA.