U.S. military arrests of mafia bosses simply rotated which gangster ran Naples.

Evidence

In August 1944, the U.S. Army was sufficiently embarrassed to arrest Genovese and return him to New York. After the prosecution’s prime witness was poisoned to death, though, Genovese went free. He eventually became the leader of Lucky Luciano’s New York crime family—which soon bore the Genovese name. In Naples, meanwhile, Genovese’s arrest left an opening. It was filled by Luciano himself, newly returned to Italy after Governor Dewey’s clemency. The bosses simply switched places. — David Vine, Base Nation_ How U.S. Military Bases…, 336

Categorization

• corroborated: 2 independent passages support this claim — David Vine, Base Nation_ How U.S. Military Bases…, 336