In the 3rd century BC, Rome started its conquest of the Iberian Peninsula, but focusing only their strength there after the end of Punic Wars. The invasion was progressing quite well. Consul Servius Sulpicius Galba though, who commanded the Roman troops in Iberia circa 150 BC, has betrayed Lusitanian people by offering peace and killing them in a massacre right after dropped their weapons. Very few escaped, among them their leader Viriathus, who joined the remaining Lusitan peoples in a war against Rome. Lusitanians cried with joy: even known as barbarians, they fought equally against Roman legions.