The five world-expert-consensus intervention resilience based principles will be operationalized in guidelines for the management of trauma patients, their caregivers and in routine nursing and trauma team care from the Emergency to the ward, and discharge, through to outpatient care. It is hypothesized that this will improve the psychological recovery of patients at risk of developing PTSD after a traumatic injury. In addition, early screening and intervention for increased risk of PTSD will be implemented one month after the trauma. It is hypothesized that such trauma informed psychological management, early screening and expert treatment using prolonged exposure will reduce hospital stays, functional disability, as well as longer-term psychiatric morbidity, including substance abuse.