His teaching and research has focused on a wide range of issues pertaining to peace and conflict including small arms and light weapons proliferation, foreign policy decision-making and non-state actor-triggered crises, and internally displaced persons during peace processes. His forthcoming book (2018, Rowman & Littlefield), co-authored with Kerry Crawford, examines the landscape of human security in theory and in practice. His recent scholarship has been published in Conflict Management and Peace Science, Refugee Survey Quarterly, and the Journal of Global Initiatives.