Year 151 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Lucullus and Albinus (or, less frequently, year 603 Ab urbe condita). The denomination 151 BC for this year has been used since the early medieval period, when the Anno Dominicalendar era became the prevalent method in Europe for naming years.
The Carthaginian debt to Rome is fully repaid, meaning that, according to Carthage, the treaty with Rome, which was put in place at the end of the Second Punic War, is no longer in force. The Romans do not agree with this interpretation. Instead they view the treaty as a permanent declaration of Carthaginian subordination to Rome.
Numidia launches another border raid on Carthaginian soil, besieging a town. In response Carthage launches a large military expedition (25,000 soldiers) to repel the Numidian invaders.