The Unione Corse was the general name given by American authorities to the major Corsican gangs who organized the French Connection, the heroin trade between France and the U.S. from the 1950s to the early 1970s.
The end of the French Connection caused the disbandment of many Corsican clans involved in the heroin trade. But the evolution of Corsican Mafia has continued in several illegal activities (hold-up, racketeering, casinos, illegal slot machines, various drug dealing, and prostitution). A lot of gangs, such as the Brise de Mer, the Valinco gang (also named "Jean Jé Colonna's family"), the "Petit Bar" gang ("Little Bar" in English), the Venzolasca gang, the Corsican mob of Marseille etc. constitute the present Corsican mafia. Since 2007, a violent conflict between the various Corsican gangs caused around 102 murders in Corsica.