Steven C. Roach is Professor and Distinguished Scholar of International Relations at the University of South Florida. A Fulbright Scholar (2020-21), he has written extensively on South Sudan's politics and published widely on international ethics and affairs. From 2019-2020, he served as Country Expert of USAID's Democracy, Human Rights, and Governance assessment team in South Sudan (2019-2020). Among his most recent books are International Relations: The Key Concepts, Fourth Edition (2022), Moral Responsibility in Twenty-First Century Warfare (2020), Decency and Difference (2019), and The Challenge of Governance in South Sudan (2019).