The Celtiberian oppidum of Numantia was attacked more than once by Roman forces, but the siege of Numantia refers to the culminating and pacifying action of the long-running Numantine War between the forces of the Roman Republic and those of the native population of Hispania Citerior. The Numantine War was the third of the Celtiberian Wars and it broke out in 143 BC. A decade later, in 133 BC, the Roman general and hero of the Third Punic War, Scipio Aemilianus Africanus, subjugated Numantia, the chief Celtiberian city.