Public event

Hertie talks Ukraine: International law and the invasion of Ukraine

The Russian Federation’s invasion of Ukraine is an act of aggression violating the ban on the use of force in international law, the cornerstone of the peace and security architecture of the post-World War II order. This violation of international law triggers state responsibility and may also trigger individual criminal responsibility, as do violations of the laws of war being committed in Ukraine. Moreover, the responses to the invasion by third states and collectivities, ranging from sanctions to protection for those displaced, pose complex questions about the role and limits of international law.

Join a panel discussion of experts addressing the international law dimensions of the invasion of Ukraine, including the law on the use of force, laws of armed conflict, international sanctions, international law governing the protection of refugees and internally displaced persons and civil and criminal accountability.   

This event is hosted by the Centre for Fundamental Rights in collaboration with the Hertie School and will take place both on-site and online.

Prior registration is required. For attending online please use the registration form



  • Mark Hallerberg is the Acting President of the Hertie School and Professor of Public Management and Political Economy. His research focuses on fiscal governance, tax competition, financial crises, and European Union politics. He previously held academic positions at Emory University, where he maintains an affiliation with the political science department, as well as at the University of Pittsburgh and Georgia Institute of Technology. He has advised, among others, Ernst and Young Poland, the European Central Bank, the German Corporation for International Cooperation (GIZ), the Inter-American Development Bank, International Monetary Fund, and the World Bank. He received his PhD from University of California, Los Angeles (UCLA) in 1995. 


  • Başak Çalı is Professor of International Law at the Hertie School and Co-Director of the School's Centre for Fundamental Rights. She is an expert in international law and institutions, international human rights law and policy. She has authored publications on theories of international law, the relationship between international law and domestic law, standards of review in international law, interpretation of human rights law, legitimacy of human rights courts, and implementation of human rights judgments.

  • Cathryn Costello is Professor of Fundamental Rights at the Hertie School and Co-Director of the Centre for Fundamental Rights. She is a leading scholar of international and European refugee and migration law and also explores the relationship between migration and labour law in her work. She is also Professor II at the University of Oslo and is on special leave from her previous post as Professor of Refugee and Migration Law at the Refugee Studies Centre, University of Oxford.

  • Tomer Broude is the Bessie and Michael Greenblatt, Q.C., Chair in Public and International Law at the Faculty of Law and Department of International Relations at the Hebrew University of Jerusalem, and currently a Fellow at the Berlin-Potsdam KFG "The International Rule of Law - Rise or Decline?". He specializes in international economic law, human rights, dispute settlement, and behavioral approaches to international law.

  • Alexandre Skander Galand is a postdoctoral researcher at the Centre for Fundamental Rights, Hertie School. He is specialised in international criminal law, international human rights law and international humanitarian law. Galand is an associate editor of the Oxford Reports on International Human Rights Law / UN Treaty Bodies, and has consulted for the Case Matrix Network and worked for the United Nations Interregional Crime and Justice Research Institute as part of the War Crimes Justice Project.

  • Yulia Ioffe is an assistant professor in international human rights and humanitarian law at UCL Institute for Risk and Disaster Reduction. Her research interests include refugee rights, children’s rights, and the law of treaties. She worked at the International Court of Justice, UNHCR Representation in Ukraine and in Bosnia and Herzegovina, and Ukrainian Red Cross.

  • Ganna Yudkivska is a judge of the European Court of Human Rights. From 2015 to 2016 she served as Vice-President of Section V of the Court, and from 2017 to 2019 as President of Section IV of the Court. Judge Yudkivska is also an Associate Professor of European and International law at the Academy of Advocacy of Ukraine, a member of the Executive Board of the European Society of International Law and of the Executive Board of the Ukrainian Association of International Law.