Roman army of the mid-Republic to the charge followed by close melee combat, had no effective response. Nevertheless, in the years following Cannae (216-203 BC), the record of Roman cavalry in operations against Hannibal in southern Italy was creditable, scoring a number of successes in cavalry encounters although never depriving the enemy of overall cavalry superiority. The Romans finally succeeded in closing the light cavalry gap with the Carthaginians by winning over the Numidian king Massinissa, previously an ally of Carthage. This enabled the Romans to field at least an equal number of Numidians at the battle of Zama (202 BC), who, outnumbering the Roman/Italian
Romans in Persia of the dynasties in control of their empires in different historical periods: first were the Medians (Media Atropatene), then Parthians and finally Sassanians. In 64 BC Pompey conquered the remaining Seleucid territories in Syria, extinguishing their state and advancing the Roman eastern frontier to the Euphrates, where Romans met for the first time the territory of the Parthians. Mark Antony, in his quest to avenge the battle of Carrhae defeat, conquered in 33 BC some areas of Atropatene (northern Iran) and Armenia but soon lost it: that was the first time that Romans occupied a Persian territory, even if temporarily.