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 Corsicans Antoine Guérini and Paul Carbone (with associate François Spirito). It also involved Auguste Ricord, Paul Mondoloni and Salvatore Greco. History The 1930s, '40s, and '50s Illegal heroin labs were first discovered near Marseille, France, in 1937. These labs were run by Corsican gang leader Paul Carbone. For years, the Corsican underworld had been involved in the manufacturing and trafficking of heroin, primarily to the United States. It was this heroin network that eventually became known as "the French Connection". The Corsican Gang was protected by the Central Intelligence Agency (CIA) and the SDECE after World War II in exchange for working to prevent French Communists from bringing the Old Port of Marseille under their control. Historically, the raw material for most of the heroin consumed in the United States came from Indochina, then Turkey. Turkish farmers were licensed to grow opium poppies for sale to legal drug companies, but many sold their excess to the underworld market, where it was manufactured into heroin and transported to the United States. The morphine paste was refined in Corsican laboratories in Marseille, one of the busiest ports in the western Mediterranean Sea, known for shipping all types of illegal goods. The Marseille heroin was considered high quality. The convenience of the port at Marseille and the frequent arrival of ships from opium-producing countries made it easy to smuggle the morphine base to Marseille from the Far East or the Near East. The French underground would then ship large quantities of heroin from Marseille to New York City. The first significant post-World War II seizure was made in New York on February 5, 1947, when seven pounds (3 kg) of heroin were seized from a Corsican sailor disembarking from a vessel that had just arrived from France. It soon became clear that the French underground was increasing not only its participation in the illegal trade of opium, but also its expertise and efficiency in heroin trafficking. On March 17, 1947, 28 pounds (13