In Ottoman Passports, Ilkay Yilmaz reconsiders the history of two political issues, the Armenian and Macedonian questions, approaching both through the lens of mobility restrictions during the late Ottoman Empire. Yilmaz investigates how Ottoman security perceptions and travel regulations were directly linked to transnational security regimes battling against anarchism. The Hamidian government targeted internal threats to the regime with security policies that created new categories of suspects benefiting from the concepts of vagrant, conspirator, and anarchist. Yilmaz explores how mobility restrictions and the use of passports became critical to targeting groups including Armenians, Bulgarians, seasonal and foreign workers, and revolutionaries. Taking up these new policies on surveillance, mobility, and control offers a timely look at the origins of contemporary immigration debates and the historical development of terrorism and counterterrorism.