What is the United Nations? What does it do and how does it do what it does? Together with Sam Daws, Natalie Samarasinghe has recently co-edited a leading eight-volume reference text on the United Nations – The SAGE Major Work on the United Nations. It is dedicated to the structures and the role of the UN over the course of its history and at the present juncture. In this Q&A, Natalie Samarasinghe, Executive Director of the United Nations Association (UNA-UK), responds to the questions of Oxford graduate Genevieve Woods.