More than 1 billion children - half of all children in the world - are exposed to violence every year. They face violence in many forms and in many places, whether they are online or offline, in their homes, schools or communities. A child can be the target of violence, can witness it, or be exposed to it. Children may often face a 'perfect storm' of violence: different forms of violence that occur together, or one form that leads to another along an appalling continuum