Between the Ottomans and the Entente presents a social history of World War I in the Syrian and Lebanese diaspora in North and South America. Working from the passports, petitions, and propaganda written by migrant activists, it documents Ottoman and French imperial projects to claim Syrian migrants for state-building and highlights nationalist resistance from abroad. A groundbreaking book that contributes to the historiography of the modern Levant, imperial and international relations, histories of war and migration, and Syrian diasporic politics. Fahrenthold's conceptually-rich approach is accompanied by impressive methodological rigor as she tracks migratory routes into multiple archives, official and non-official, to uncover complex social and political worlds. This is a crisp and engaging read and a necessary one for anyone interested in why and how the mahjar matters.