Juventus football club is the best supported club in Italy, the club has more than 12 million fans and it is considered to be one of the most supported football clubs in the world, with 180 million supporters.
The first organized groups of fans were Venceremos and Autonomia Bianconera. Later Fossa dei Campioni and Panthers were founded.
There were also extreme groups: Viking and Nucleo Armato Bianconero. They were really ultra groups, fighting against other supporters.
Arancia Meccanica was founded by old Fighters, Indians and Gioventù Bianconera members and shortly after was renamed to Drughi, the most important supporter group in the club history.
Nowadays there are such organized Juve supporters as: Curva Sud, Viking Juve, Arditi, Nucleo, Tradizione Bianconera, Gruppo Marche (GM), Gruppo Homer (GH), and many others.