 After some initial Celtiberian victories, the consul Marcus Claudius Marcellus inflicted some defeats and made peace with the Celtiberians.The next consul, Lucius Licinius Lucullus, attacked the Vaccaei, a tribe living in the central Duero valley which was not at war with Rome.He did so without the authorisation of the senate, with the excuse that the Vaccaei had mistreated the Carpetani.