Book review: European security in integration theory: contested boundaries by Kamil Zwolski

In European Security in Integration Theory: Contested Boundaries, Kamil Zwolski revisits the archive of two theories of international and European integration – federalism and functionalism – to show their relevance for understanding the dilemmas facing Europe today. As early integration theories may return as part of current debates, this book will be of use to academics and policymakers, finds Anna Nadibaidze.