Helmut Philipp Aust is a Professor of Law at Freie Universität Berlin, Germany, and Co-Chair of the ILA Study Group 'The Role of Cities in International Law'. Publications include Complicity and the Law of State Responsibility (2011) and The Interpretation of International Law by Domestic Courts (2016, with Georg Nolte). Thomas Kleinlein is a Professor of Law at Friedrich Schiller University Jena, Germany, where he holds the Chair of Public Law, Public International Law, EU Law and Comparative Law and is Co-Director of the Center for European Studies. Publications include System, Order, and International Law – The Early History of International Legal Thought (2017, with Stefan Kadelbach and David Roth-Isigkeit).
'The book edited by Aust and Kleinlein focuses innovatively on bridges and boundaries between international law and foreign relations law. It has a compelling structure, diversity of case studies and concludes with observations by two senior scholars in the field, Bradley and McLachlan. Reading the book made me understand better some of my own studies on the evolution of international law in Russia.' Lauri Mälksoo, Professor of International Law, University of Tartu, Estonia ''Bridge or boundary'? is the editors' lead question. Original chapters on classic and novel aspects of the interface between domestic and international law make an important contribution to the emerging field of comparative foreign relations law. In a climate of backlash against international law and governance a most timely book.' Anne Peters, Director, Max Planck Institute for Comparative Public Law and International Law, Heidelberg