In the following conversation concerning her recent publication, Dr. Janina Dill, Departmental Lecturer in International Relations at the University of Oxford, navigates a clear-cut path through concepts of International Law (IL), legitimacy and morality in warfare. From a theoretical perspective, she explains the relationship between constructivism, IL and international relations and highlights how our understanding of this relationship may be better informed through new concepts such as ”behavioural relevance” and “normative success”. From a practical perspective, she examines the historical shift in the conduct of warfare and the use of drone warfare by the United States. In response to Brett Rosenberg’s questions, Dr. Dill contemplates whether there are in fact legitimate targets in war.   Many have argued that International …