Zwi migdal refers to an organized crime group that operated primarily in the 20th century, particularly during the 1930s and 1940s, with roots in Jewish immigrant communities. This group is notable for its involvement in various illicit activities, including extortion, smuggling, and racketeering, which were often linked to larger organized crime networks. The structure of zwi migdal exemplifies how ethnic and cultural backgrounds can shape the operations and hierarchy within organized crime groups.