Several studies indicate that health care providers are increasingly the subject of verbal, psychological and/or physical aggressions. Among them, the Emergency Department nurses, especially if engaged in Triage, are the most vulnerable to acts of violence in the course of their work. Since 2009 I'm investigating the Workplace Violence phenomena in Italian Emergency Departments. With Ceccagnoli and Addy, I conducted literature reviews, qualitative and quantitative studies. We think that only through a comprehensive approach to aggression in the ED we can find an effective response to the problem of violence against nurses. What is your experience about this problem? How can we defend ourselves?