The French Connection was a scheme through which heroin was smuggled from Indochina through Turkey to France and then to the United States and Canada, sometimes through Cuba. The operation started in the 1930s, reached its peak in the 1960s, and was dismantled in the 1970s. It was responsible for providing the vast majority of the heroin used in the United States at the time. The operation was headed by Corsican criminals Paul Carbone (and his associate François Spirito) and Antoine Guérini, and also involved Auguste Ricord, Paul Mondoloni and Salvatore Greco.