This book addresses issues connected with Russia’s 2014 annexation of Crimea that are both of key current relevance and crucial from the point of view of both international law and international relations. It not only offers a comprehensive elaboration of the subject, but also presents it from the points of view of states directly engaged in the conflict. For the authors in this book include researchers from many European countries, albeit first and foremost from both Ukraine and Russia. In this way the collected work represents a contribution of undoubted value where the ongoing international debate on the Crimean annexation is concerned. From the review by Prof. Anna Wyrozumska This book offers an interesting, holistic and competent contribution to legal analysis surrounding Russia’s annexation of Crimea, the consequences thereof and the responsibility in international law therefor. It is characterised by a high level of legal analysis by a competent international team of authors led by Polish experts on the subject, whose painstaking selection of co-authors has allowed for an airing of both Ukrainian and Russian standpoints. From the review by Prof. Jerzy Kranz