Research project EUSI - The EU Security Initiative at the EUI Print Share: Share on Facebook Share on BlueSky Share on X Share on LinkedIn Send by email Visit the dedicated Project Website → The EU Security Initiative (EUSI) aims to foster forward-looking, values-based dialogue and research on European security and defence. Rooted in the EUI’s dual identity as a research university and international organisation, and aligned with its vision for a future EUI, the EUSI aims to construct spaces to productively and critically connect academia and policy. It does so through facilitating a format of structured and recurring exchange between researchers, policymakers, practitioners, private sector and civil society actors across Europe—breaking silos, fostering co-creation, and exploring both urgent and long-term security challenges. The team Group members Michal Matlak Senior Fellow Robert Schuman Centre for Advanced Studies View Michal Matlak profile Monika Sus Part-time Professor Robert Schuman Centre for Advanced Studies View Monika Sus profile Julian Vierlinger Research Fellow Office of the President View Julian Vierlinger profile Jan Lepeu Research Fellow Florence School of Transnational Governance View Jan Lepeu profile Raquel Martínez Trainee Development and External Relations Service View Raquel Martínez profile Publications There and back again : how UK-EU de-institutionalisation after Brexit shaped re-engagement after Ukraine This article explores how Russia’s 2022 invasion reshaped UK–EU security ties, arguing that Brexit legacies and path dependency have limited and phased, rather than fully renewed, cooperation. Read more There and back again : how UK-EU de-institutionalisation after Brexit shaped re-engagement after Ukraine I sanction therefore I am : a genealogy of the emergence of international sanctioning as an EU foreign policy practice This thesis traces the EU’s shift from reluctance to becoming a major user of unilateral sanctions, explaining how sanctioning evolved into a central foreign policy practice. Read more I sanction therefore I am : a genealogy of the emergence of international sanctioning as an EU foreign policy practice