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Warfare History

The Mafia’s Secret Role in Helping the U.S. Win World War II

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1. The Formation of Operation Underworld

1. The Formation of Operation Underworld
Image Source: Wikimedia Commons.

In 1942, the Office of Naval Intelligence recognized the Mafia’s control over New York’s bustling waterfront. Fearing Axis sabotage in critical shipyards and ports, officials quietly launched Operation Underworld. This secret initiative brought Mafia leaders into a unique collaboration with federal agents, leveraging their street-level intelligence and iron grip on dockside operations. Operation Underworld marked the beginning of a clandestine war, fought not with armies, but with information and influence in the shadows.

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