This multi-disciplinary volume provides an innovative approach to children and violence, looking beyond the existing literature that focuses on child soldiers in the 'Global South'. Harnessing expert contributions from over a dozen countries, the book examines the relationship between children and violence, with a focus on children ensnared in military conflict, embroiled in criminal gangs, and enmeshed in political activism. It analyses how children join fights, how they fight, and what happens to them after fighting officially ends. It addresses cutting-edge issues such as cyberwars, self-defence, intergenerational trauma, gender fluidity, racism, and state surveillance. Throughout, the book underscores the need to respect the agency and dignity of children and youth, to build cultures of juvenile rights, and to think critically of the place of the child amid global power politics and decolonialization. Through accessible writing, and the provision of considerable new data, this book supports advocacy work, and will enrich teaching and spark further academic research. This book will be of great interest to students of International Law, Human Rights, Childhood Studies, International Relations, Peace and Conflict Studies, Post-conflict studies and Security Studies.