In this book, contributors go in-depth to analyze the 'crime of aggression', 'crimes against humanity' and their applicability in the context of the invasion of Ukraine. The ongoing Russian invasion of Ukraine brings the principles of Nuremberg to the forefront of discussions on justice, raising questions about the feasibility of Nuremberg-style accountability. The book touches upon the abduction of Ukrainian children and the destruction of Ukrainian cultural heritage. Contributors also discuss the topic of war crime tribunals after Nuremberg, including Timor and former Yugoslavia, as well as tribunals in Rwanda, Sierra Leone, and others leading up to the International Criminal Court (ICC). Including essays by Oleksandra Matviichuk, the Ukrainian Nobel Laureate, and Ambassador Dr. Anton Korynevych, Ukrainian minister and specialist in international law, this book considers the contemporary relevance of the Nuremberg principles in the context of the Russian invasion of Ukraine.