Erik Lin-Greenberg is a PhD student in political science at Columbia University where he studies international relations. His research interests include military escalation, non-traditional security operations, and the use of airpower. Prior to attending Columbia, Erik served as an officer in the United States Air Force and has deployed to Afghanistan and Southwest Asia. He continues to serve as an officer in the Air Force Reserve. His writing has appeared inInternational Peacekeeping, Defense and Security Analysis, Air and Space Power Journal, The National Interest, and The South China Morning Post. Erik holds master’s degrees in political science from Columbia University and MIT and a bachelor’s degree from MIT. He participated in Bridging the Gap’s New Era Foreign Policy program in 2015.