The Battle of Aesernia took place in the year 90 BC during the Social War.[1] A force under the consul Lucius Julius Caesar, an uncle of the more famous Julius Caesar, was engaged while moving to relieve the siege of Aesernia and defeated by a rebel force under Titus Vettius Scato.[2] Orosius wrote that Caesar had to entirely rebuild his army with Gallic and African troops after the battle while Appian admits only 2,000 Roman dead. As a result of their victory the rebels had enough spare forces to reinforce the army besieging Aesernia while another army took Venafrum. It is also possible Venafrum joined the rebels.