In that year, Quintus Caecilius Metellus Macedonicus tried and failed to take Numantia by siege, but subjugated all the other tribes of the Arevaci.

His successor, Quintus Pompeius, was inept and suffered severe defeats at their hands, so he secretly negotiated a peace with the city abiding by the previous treaty.

Rome decided to ignore Pompeius' peace and sent Gaius Hostilius Mancinus to continue the war in 136 BC.

He assaulted the city and was repulsed several times before being routed and encircled, and so forced to accept a treaty, negotiated by a young Tiberius Gracchus.

The decisive Roman victory over Numantia ushered in an era of lasting peace in Hispania until the Sertorian War over half a century later.