The project CREMLIN – Connecting Russian and European Measures for Large-scale Research Infrastructures – was a Coordination and Support Action supported by the Horizon 2020 framework programme of the European Union. The project was launched in October 2015 and aimed at fostering scientific cooperation between the Russian Federation and the European Union in the development and scientific exploitation of large-scale research infrastructures. 19 European research centers, including 6 Russian institutions, established a consortium the principal goal of which was the development of coordination and support measures for each research infrastructure and common best practice and policies on internationalisation and opening. The project was intended for 3 years during which each consortium member organized working meetings and/or focus workshops with participation of other CREMLIN members, where problems of mutual interest were discussed and plans for further collaborative efforts were formulated.