This book commemorates the 50th anniversary of the International Court of Justice’s Advisory Opinion on the Western Sahara, bringing together leading international legal scholars to explore and critically assess the enduring relevance and implications of the Opinion. It offers a comprehensive and authoritative analysis of the main legal issues surrounding the status of the Western Sahara, including self-determination, territorial sovereignty, decolonization, and the role of international institutions. By providing historical context, legal interpretation, and contemporary perspectives, the volume serves as a definitive reference for scholars, practitioners, and policymakers interested in international law, conflict resolution, and the ongoing legal dimensions of the Western Sahara question.