Ian J. Stewart is a senior researcher in the Department of War Studies at King’s College London, where he heads Project Alpha. He is also the training advisor for the consortium implementing the European Union’s Partner-2-Partner program on dual-use goods. He is a specialist on issues related to export controls, sanctions, and nonproliferation more generally. An engineer by training, Ian has many years of experience in government and working with companies and international organisations in relation to nonproliferation matters. He was also a research fellow at Harvard’s Belfer Center for Science and International Affairs. Ian is undertaking a part-time PhD in which he examines the evolution of the nonproliferation regime through the lens of collective action. Research for this PhD has taken him to nearly every US presidential archive–from Truman to Reagan–and he has amassed more than 50,000 pages of original primary source materials from archive sources.