Aemilianus campaigned successfully against the Lusitani, but failed in his attempts to arrest Viriathus. In 144 BC, Viriathus formed a league against Rome with several Celtiberian tribes and persuaded them to rise against Rome too, in the Second Numantine War. Viriathus' new coalition bested Roman armies at the Second Battle of Mount Venus in 144 BC and again at the failed Siege of Erisone. In 139 BC, Viriathus was finally killed in his sleep by three of his companions who had been promised gifts by Rome. In 136 and 135 BC, more attempts were made to gain complete control of the region of Numantia, but they failed. In 134 BC, the Consul Scipio Aemilianus finally succeeded in suppressing the rebellion following the successful Siege of Numantia. Since the Roman invasion of the Iberian peninsula had begun in the south in the territories around the Mediterranean controlled by the Barcids, the last region of the peninsula to be subdued lay in the far north. The Cantabrian Wars or Astur-Cantabrian Wars, from 29 BC to 19 BC, occurred during the Roman conquest of these northern provinces of Cantabria and Asturias. Iberia was fully occupied by 25 BC and the last revolt put down by 19 BC Macedon, the Greek poleis, and Illyria (215–148 BC) Rome's preoccupation with its war with Carthage provided an opportunity for Philip V of the kingdom of Macedon in northern Greece to attempt to extend his power westward. Philip sent ambassadors to Hannibal's camp in Italy, to negotiate an alliance as common enemies of Rome. However, Rome discovered the agreement when Philip's emissaries, along with emissaries from Hannibal, were captured by a Roman fleet. Desiring to prevent Philip from aiding Carthage in Italy and elsewhere, Rome sought out land allies in Greece to fight a proxy war against Macedon on its behalf and found partners in the Aetolian League of Greek city-states, the Illyrians to the north of Macedon and the kingdom of Pergamon and the city-state of Rhodes, which lay across the Aegean from Macedon. The First Macedonian War saw the Romans involved directly in only limited land operations. When the Aetolians sued for peace with Philip, Rome's small expeditionary force, with no more allies in Greece, was ready to make peace. Rome had achieved its objective of pre-occupying Philip and preventing him from aiding Hannibal. A treaty was drawn up between Rome and Macedon at Phoenice