This penetrating study of the violence associated with juvenile leisure activities combines research from six European countries--Belgium, France, Italy, Portugal, Spain, and the United Kingdom--to gain insight into the cause of the violence and to formulate effective strategies for solving the growing problem. Separate diagnoses made by the different investigative groups serve to enrich and complement each other, providing a more complete image of the factors involved in conflicts occurring in these contexts as well as supplying the appropriate preventative measures. This study brings a new understanding to the underlying causes of the violence, and presents an eye-opening look at the problems faced by today's youth culture.