Quintus Fulvius Nobilior
In 153 BC Quintus Fulvius Nobilior was in charge of a 30.000 strong army to campaign in Spain, which was largely unsuccessful. The Roman army was initially deployed against the oppidum of Segeda, whose Celtiberian inhabitants, the Belli, had been expanding its walls and attacking other nearby tribes. Segeda was destroyed, but the Belli assembled an army which ambushed the Roman army inflicting heavy losses. Moving west to the meseta, Nobilior laid siege to Numantia, an oppidum whose inhabitants were to give Rome trouble for years and had sheltered the Belli when they fled their city. The Roman army faced difficult conditions in the winter and had to withdraw. Nobilior was replaced as consul in 152 BC by Marcus Claudius Marcellus.