Drawing on examples from various countries, as well as struggles taking place across borders, this book traces the emergence of new practices of being political, described as ‘collective movements’. These represent something looser than a common identity – long held as necessary for a political struggle to cohere. They also suggest a different understanding of emancipation to the promise of transformation in time. By addressing various examples of ‘collective movements’, the chapters in this book examine other ways of being political together, formed through relations carved in cramped spaces or small movements that rearrange our ideas about what is possible. Drawing on the temporary and fleeting nature of many migrants’ struggles, the chapters develop concepts and approaches that acknowledge how such mobilisations trouble many standard political sociological categories – including nation, identity, and citizenship. In combining an attentiveness to theories of affect, emotion and atmosphere, they also go beyond a focus on either individuals or collectives, to address the ways bodies are moved by the world and by others. Overall, the chapters propose new questions, methods, and starting points for addressing collective movements in emerging political spaces, and for understanding how what counts as politics is being redrawn on the ground. This book will interest students, researchers and scholars of international political sociology, human geography, international relations, critical security studies, and migration studies.