This lecture introduces the concepts of migrations, forced displacements, natural disasters, and informal urbanization. It covers the analysis of critical case studies on precarious housing situations, informal neighborhoods, and camps in urban areas. The course emphasizes the importance of providing safe and dignified housing in humanitarian crises, focusing on the roles of architects and urban planners. Students will work in groups to conduct a thematic analysis and present a project case study. The lecture also explores the challenges of emergency urban planning and architecture in humanitarian contexts, discussing the complexities of urban settlements in crisis situations.