Book excerpt: There have been dramatic changes to the landscape of European security in the twenty years since the fall of the Berlin Wall. The essays in European Security Since the Fall of the Berlin Wall collectively take stock of how approaches to security in Europe have changed, both in practice and in theory, since the end of the Cold War. Organized into three sections, this collection begins with an exploration of the broad changes in Europe's security environment relating to issues such as terrorism and the rising importance of energy security. The second section describes the adaptations of Europe's institutional framework, including the transformation of NATO and the evolution of European armed forces, while the closing essays examine regional security issues with the Middle East, the Balkans, and Russia. Covering a broad spectrum of theoretical approaches and written in a clear, engaging style, European Security Since the Fall of the Berlin Wall will illuminate European security debates for years to come.