The Chaillot Paper series, published by the EU Institute for Security Studies, examines strategic and interdependent issues related to European sovereignty. The latest issue, titled "European Sovereignty: Strategy and Interdependence," focuses on the challenges and opportunities facing the European Union in the 21st century. The paper includes contributions from experts in security and defense, and covers topics such as the EU's role in global affairs, the impact of Brexit, and the challenges of maintaining European unity in the face of increasing competition from other global powers. The Chaillot Paper series is widely respected for its in-depth analysis and insights into the complex issues facing the European Union.