He obtained his first degree in law from the University of Belgrade, his LL.M from the University of Michigan, and his PhD in international law from the University of Cambridge. He is the Vice-President and member of the Executive Board of the European Society of International Law and an Associate of the Belgrade Centre for Human Rights. He has been a visiting professor at the University of Michigan Law School and at the Geneva Academy of International Humanitarian Law and Human Rights. His expertise includes general international law, especially issues of state responsibility and treaty interpretation; human rights law; international criminal law and international humanitarian law.