Joshua Shifrinson is an Associate Professor of International Relations in the Frederick S. Pardee School of Global Studies at Boston University. Shifrinson’s book, Rising Titans, Falling Giants: How Great Powers Exploit Power Shifts, explains why some rising states challenge and prey upon declining great powers, while others seek to support and cooperate with declining states. He has additional related projects on U.S. grand strategy, the durability of NATO, U.S. relations with its allies during and after the Cold War, and the rise of China. His work has appeared in International Security, the Journal of Strategic Studies, Foreign Affairs, and other venues.