Frank Larry Matthews, also known as Black Caesar, Mark IV and Pee Wee, was an American drug trafficker and crime boss who sold heroin and cocaine throughout the eastern United States from 1965 to 1972. He operated in 21 states and supplied drug dealers throughout every region of the country. The Drug Enforcement Administration (DEA) ranks Matthews as one of the top ten drug traffickers in U.S. history and he is estimated to have had US$20 million in savings.

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. 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. It also involved Auguste Ricord, Paul Mondoloni and Salvatore Greco.