Lawyer, specialising in public international law, associated with the Polish Institute of International Affairs since 2000. Graduated from the Faculty of Law and Administration at the Maria Curie-Sklodowska University in Lublin. In 2002-2012 managing editor of the "Polish Diplomatic Review". From 2016 member of the editorial board of the renewed PPD. In 2008, served as an advisor to the Polish delegation at the 63rd session of the UN General Assembly. In 2010-2013 had been representing PISM in the Commission on International Humanitarian Law. From 2013 associated with the Centre for Polish-Russian Dialogue and Understanding. Since 2016 he is a duty editor of "Bulletin PISM".