Joachim’s work focuses on regional and global approaches to peacekeeping and peacebuilding, inter-organisational relations and global security governance as well as regional and global approaches to security, diplomacy, democracy and human rights. In addition, he takes a keen interest in higher education leadership and reform as well as innovative approaches to teaching excellence. Joachim is the author, co-author or co-editor of seven books (amongst which the Oxford Handbook of United Nations Peacekeeping Operations, the Palgrave Handbook of Inter-organisational Relations in World Politics and the Palgrave Handbook of Cyberdiplomacy) and more than 60 publications and policy reports. He has served as the Coordinator of the European Network on Teaching Excellence (ENOTE) and Head of the Research and Education Arena on social and societal well-being for the European University Alliance on Well-being (EUniWell). From 2014 to 2018, Joachim was Dean of Vesalius College of the Vrije Universiteit Brussel (VUB) and from 2019 to 2024 Director of the Institute of Security and Global Affairs at Leiden University, where he is also Professor of Security Studies and holds the Jean Monnet Chair on the European Union’s Role in Security and Global Affairs.