The four sovereign Indian Ocean states of Comoros, Madagascar, Mauritius and Seychelles, the two French overseas departments of Mayotte and Reunion, as well as the British colony of BIOT (Chagos), all form part of Africa. As insular nations and territories in an increasingly globalized, militarized and largely unregulated ocean, they face particular challenges. Commonly overlooked in the fields of African and international studies, this text traces the islands' history and explores their diverse contemporary social, political and economic trajectories. From human settlement and slavery to conflict resolution and piracy, the relations with continental Africa and the African Union feature prominently. Richly sourced, this comprehensive and up-to-date introduction to Africa's Indian Ocean islands covers a significant lacuna.