Book excerpt: This book offers a multidisciplinary examination of the international crimes committed in the Russia-Ukraine War, and the challenges of their prosecution and documentation. As the largest international armed conflict in Europe since World War II, Russia’s war against Ukraine has provoked strong reactions and questions about the post-1945 world order, the utility of the war, and the effectiveness of international criminal justice. Throughout the chapters in this volume, scholars and legal practitioners from Canada, Germany, Poland, Ukraine, the UK, and the United States present the results of interdisciplinary research, insights from the perspective of other post-communist states, and first-hand expertise from directly working on the documentation and prosecution of these crimes. This offers a broader picture of post-Cold War relations and sheds light on the roots and nature of the war and the importance of regional approaches. The chapters also present some possible responses to the crimes committed in the conflict, with a focus on a victims-centered approach to transitional justice. This volume will be of interest to scholars and students of international criminal and humanitarian law, security studies, peace and conflict studies, and Eastern European history.