 By forming large entities with several different levels and locales, the Mafia built itself up for a national crisis that expanded throughout some of the nation's Italian neighborhoods.After decades of battles between the Sicilians and Neapolitan Camorra, the Sicilian Mafia became the dominant force in gambling, labor, and bootlegged liquor.By the 1930s, two major factions fought for dominance – Stefano Magaddino from Niagara Falls was a senior member of the Castellammarese families, one of the factions.