 Appian wrote that Calpurnius Piso was sent as a commander to Hispania because there were revolts.The following year, Servius Galba was sent without soldiers because the Romans were busy with Cimbrian War and a slave rebellion in Sicily (the [Third Servile War], 104–100 BC).In the former war the Germanic tribes of the Cimbri and the Teutones migrated around Europe and invaded territories of allies of Rome, particularly in southern France, and routed the Romans in several battles until their final defeat.