The Battle of Munda, in southern Hispania Ulterior, was the final battle of Caesar's civil war against the leaders of the Optimates. With the military victory at Munda and the deaths of Titus Labienus and Gnaeus Pompeius, Caesar was politically able to return in triumph to Rome, and then govern as the elected Roman dictator. Subsequently, the assassination of Julius Caesar began the Republican decline that led to the Roman Empire, initiated with the reign of the emperor Augustus.

Caesar's civil war was a civil war during the late Roman Republic between two factions led by Gaius Julius Caesar and Gnaeus Pompeius Magnus (Pompey), respectively. The main cause of the war was political tensions relating to Caesar's place in the republic on his expected return to Rome on the expiration of his governorship in Gaul.