Riots between English and German football (soccer) fans, better known as hooligans, in Brussels June 16 are a reminder to travelers to keep a wary distance from football matches on their summer itineraries. Such riots sometimes break through police containment and affect innocent bystanders. Violence is often indiscriminate, with hooligans attacking whoever is in their path. Follow local press reports for matches scheduled in cities you plan to visit, and steer clear of them.