His research interests include international relations, U.S. foreign relations, and the evolution of modern international society, with an emphasis on the roles of the United States and of non-European peoples. His forthcoming book The Wilsonian Moment: Self-Determination and the International Origins of Anticolonial Nationalism examines how the 1919 emergence of the language of self-determination in international discourse influenced the rise of national movements in Asia and the Middle East.