This book examines the role and impact of European Union (EU) agencies in the areas of justice and home affairs, common foreign and security policy, and common security and defense policy. Through comparative case studies of thirteen key agencies, including the European Defense Agency (EDA), Europol, Frontex, and the Fundamental Rights Agency (FRA), it sheds light on the agencies' roles and impacts.

The book explores four main areas: the conditions that led to the establishment of these agencies, their institutional structures, how they execute their powers, and how they have responded to Russia's war against Ukraine. Using the principal-agent concept, the book analyzes power delegation, information asymmetry, accountability, and control.

The book provides insight into the agencies' activities, their role in enhancing the security of EU citizens, and their response to Russia's invasion of Ukraine. Additionally, it discusses future challenges and prospects for EU agencies in the evolving security landscape. Therefore, this book will appeal to scholars, students, policymakers, security professionals, and anyone interested in the EU's security framework and the role, impact, and future challenges of EU agencies in security and defense.

Autorentext

**Ondrej Filipec is the Vice-Chair and a Board Member at the Department of Politics and Social Sciences at Palacký University in Olomouc, Czechia. He is a member of several scientific societies, including the Czech Association for European Studies and the Jean Monnet Centre of Excellence in EU Law. He serves as Executive Editor of the Slovak Journal of Political Sciences and regularly attends numerous international scholarly conferences and public events. He is also part of academic networks like the "Network for Protection of Democracy" and the Jean Monnet Network.

**Katka Vavrinová is a Ph.D. candidate at the Faculty of Law, Palacký University in Olomouc, specializing in cybersecurity, digital technologies, and digital human rights. She has been affiliated with the Czech Republic's Permanent Representation in Geneva and studied EU Studies at Paris-Lodron University in Salzburg, Austria. Vavrinová holds a degree in European Law and EU Policies from Palacký University and received the Karel Schwarzenberg Prize for her thesis. She is member of the Czech Association for European Studies, teaches EU courses and participates in academic projects, including Erasmus+ initiatives.