The Lusitanian War, called in Greek Pyrinos Polemos ("the Fiery War"), was a war of resistance fought by the Lusitanian tribes of Hispania Ulterior against the advancing legions of the Roman Republic from 155 to 139 BC. The Lusitanians revolted on two separate occasions (155 and again 146) and were pacified. In 154 BC, a long war in Hispania Citerior, known as the Numantine War, was begun by the Celtiberians. It lasted until 133 and is an important event in the integration of what would become Portugal into the Roman and Latin-speaking world.