This book reveals how, for well over a millennium and across three continents - Asia, Africa, and Europe - non-Muslims who were vanquished by jihad wars became forced tributaries (called dhimmi in Arabic) in lieu of being slain. Under the dhimmi religious caste system, non-Muslims were subjected to legal and financial oppression, as well as social isolation. Extensive primary and secondary source materials, many translated here for the first time into English, are presented, making clear that jihad conquests were brutal, imperialist advances, which spurred waves of Muslims to expropriate a vast expanse of lands and subdue millions of indigenous peoples. Finally, the book examines how jihad war, as a permanent and uniquely Islamic institution, ultimately regulates the relations of Muslims with non-Muslims to this day. Scholars, educators, and interested lay readers will find this collection an invaluable resource.