Germanicus was given a force of freemen and freedmen. Some of the latter were requisitioned from their masters, who were compensated. In Rome there was a shortage of grain. Velleius Paterculus wrote that the rebel forces in Pannonia who faced Tiberius were not happy with the size of their forces. They were worn down and brought to the verge of famine (presumably due to ravaging), could not withstand his offensives, and avoided pitched battles. They went to the Claudian Mountains (a mountain range in Pannonia, in the Varaždin County in northern Croatia) and took a defensive position in the natural fortifications. In Velleius Paterculus’ version, the second rebel force confronted the legions which Caecina Severus and Marcus Plautius Silvanus were bringing to Illyricum (from Moesia and the Roman province of Asia, three and two legions respectively). They surrounded the five legions, their auxiliary troops, and the Thracian cavalry and almost inflicted a fatal defeat. The Thracian cavalry was routed and the allied cavalry fled. The legions suffered casualties, but they then rallied and won the day. Cassius Dio’s version does not mention Plautius Silvanus; instead, the two Batos went to wait for the arrival of Caecina Severus. They attacked him unexpectedly when he was encamped near the Volcaean marshes, but Severus repulsed the attack. Following this battle the Roman army was divided into detachments to overrun as many parts of the country as possible at once. In Dio's opinion, at this time they did not accomplish anything worthy of note, except for Germanicus defeating the Mazaei, a Dalmatian tribe. In an earlier passage he noted that in this year the country was ravaged and that the rebels did not defend it. They withdrew to mountain fortresses from which they launched raids whenever they could. Therefore, even though there were no spectacular battles (by which the Romans judged military worthiness), Tiberius' counter-insurgency campaign and its accompanying scorched earth strategy turned out to be effective.