Biological, psychological, sociological, and learning and behavioral theories have all been advanced to explain the causes of juvenile delinquency and violence. However, these competing explanations are not complete. Juvenile delinquency and violent juvenile crime are complex phenomena involving interactional, individual, situational, and environmental influences, all of which must be taken into account for a theory or set of theories to be useful. An integrated theoretical scheme is proposed and presented in diagram form. The intervention model suggests that youth become delinquent and/or violent in one of two ways. First, individual psychological factors or early socialization experiences can precipitate outbursts of violence. Second, youths can become delinquent and/or violent through inadequate socialization. The model identifies four underlying principles which operate on both internal and external bonds. Promising strategies for intervention are social networking, provision of youth opportunities, social learning, and goal-oriented interventions. A list of 97 references is included.