After a decade of research, this book therefore puts security governance to the test and scrutinises its analytical and political pitfalls and potentials. It reviews the concept of security governance and identifies central conceptual, empirical and normative challenges that need to be addressed. Moreover, this book scrutinises critical examples of security governance from EU security policy as well as in a comparative regional perspective. Case studies include EU efforts to counter piracy off the coast of Somalia, combat terrorism inside European societies and protect critical infrastructures. This book was originally published as a special issue of European Security.