American Mafia in terms of membership and crews?

The American Mafia, also known as La Cosa Nostra, is a structured organization primarily composed of Italian-American members. It is organized into various "crews," which are smaller groups led by a capodecina (captain) and operate under the oversight of a boss. Membership is often based on familial ties and loyalty, with initiation rituals that reinforce commitment to the organization. Despite law enforcement efforts, the Mafia has adapted over the years, maintaining influence in various illicit enterprises.