"Gangs of New Holland" refers to a series of organized crime groups that emerged in the New Holland region during the late 19th and early 20th centuries. These gangs were involved in various illegal activities, including smuggling, extortion, and racketeering. Their influence extended into local politics and law enforcement, often leading to corruption and violence. The most notorious of these gangs included the Duke's Gang and the Riverside Crew, which competed for control over territory and criminal enterprises. Their activities contributed to a climate of fear and instability in the area, prompting law enforcement to take action against them over the years.