The Circonvallazione massacre, in Italian Strage della Circonvallazione, is a Cosa Nostra attack that took place on June 16, 1982 on the Palermo ring road. The attack was directed against Catanese boss Alfio Ferlito, who was transferred from Enna to the Trapani jail, and died with the three escort carabinieri and the 22-year-old Giuseppe Di Lavore, the driver of the private company that had the transportation of prisoners, who had replaced his father. The mandators of this massacre were Salvatore Riina and Bernardo Provenzano, in favor to Nitto Santapaola, who was in a year-long war with Ferlito for the predominance on the city of Catania territory.

The Second Mafia War was a period of conflict involving the Sicilian Mafia, mostly taking place from 1981 to 1984 and involved thousands of homicides. Sometimes referred to as The Great Mafia War or the Mattanza, it involved the entire Mafia and radically altered the power balance within the organization. In addition to the violence within the Mafia itself, there was violence against the state, including a campaign of deliberate assassinations of judges, prosecutors, detectives, politicians, activists and other ideological enemies. In turn, the war resulted in a major crackdown against the Mafia, helped by the pentiti, Mafiosi who collaborated with the authorities after losing so many friends and relatives to the fighting. In effect, the conflict helped end the secrecy of the Mafia.