“…The contributions to this collection do not represent a selection of comparative cases designed to test the analytical framework, but explore a variety of EU bordering issues, actors and processes at different levels: the migration (Kriesi et al, 2021) and Corona pandemic crises (Genschel & Jachtenfuchs, 2021), the preferences of EU citizens in response to the migration crisis (Lutz & Karstens, 2021) and of populist parties on EU defence policy (Henke & Maher 2021), parliamentary discourses on enlargement (Bélanger & Schimmelfennig, 2021), EU regulatory agencies (Lavenex et al, 2021), and EU collective action on defence, migration and the neighbourhood policy (Eilstrup-Sangiovanni, 2021).…”