Macedonian–Carthaginian Treaty


The Macedonian–Carthaginian Treaty was an anti-Roman treaty between Philip V of Macedon and Hannibal, leader of the Carthaginians, which was drawn up after the Battle of Cannae when Hannibal seemed poised to conquer Rome. Philip V, who feared Roman expansion, wanted to ride on the coat tails of the victor in the Second Punic War. The discovery of this treaty inevitably led to the outbreak of the First Macedonian War between Rome and its Greek allies against Macedonia.

Hannibal

Having left Spain for Italy to wage war against Rome, thus causing the Second Punic War, Hannibal garnered victory after victory in a series of lightning battles against the legions of the burgeoning Italic power.
With the help of his brothers Hasdrubal and Mago, his brother-in-law Hasdrubal the Fair, as well as other Carthaginian commanders, Hannibal managed to keep the Iberian front battling, which forced the Romans to redirect manpower away from the Italic front. The alliance with Philip V was an attempt to open another front in the east, which would have further stretched Roman resources and soldiers.

Philip V

Roman power had been steadily spreading on the eastern coast of the Adriatic sea. The Illyrians, once ruled by queen Teuta, had been subjugated under the pretext that they were involved in piracy on the Dalmatian and Albanian coasts against merchants from Rome. By Philip's time, virtually every city and port on the eastern Adriatic coast was under Roman influence or protectorate.
The Romans had also provided their support to many Greek coastal cities and islands members of the Aetolian League, which fought against Macedon and the rest of Greece in search of independence. The Seleucid kings of Syria and Attalus I of Pergamon were stirring trouble on the eastern borders of Macedon. Philip V, therefore, needed a powerful ally to halt Rome's expansion towards the Balkans and mitigate the danger on Macedon's western border. Hannibal seemed the perfect candidate.

Diplomatic mission

, the Roman historian of the 1st century, narrates in Ab Urbe condita, Liber XXIII, 33-39, how Philip, having observed Hannibal's victories, sent a delegation in the summer of 215 BC to meet him on the Italic peninsula to secure an alliance.
The Greek ambassadors, avoiding the most obvious points of disembarkation from Greece, Brindisi and Taranto, landed near Capo Colonna, in Calabria, by the temple of Juno Lacinia. From there, they moved towards Capua, where Hannibal had set up headquarters, hoping not to be intercepted by Roman legions.
Unable to avoid detection, the delegation was escorted to the praetor Marcus Valerius Laevinus for questioning. The Athenian commander Xenophanes, leader of the expedition, improvised by declaring that the delegation had been sent by king Philip to secure an agreement of amicitiam societatemque with the Roman people.
The praetor welcomed the delegation and sent it on its way to Rome, providing an escort and key tactical information on where the Carthaginians were camped. Armed with this knowledge, the Macedonians reached Hannibal's camp with little effort completing their assigned mission.
The text of the treaty, recorded by historian Polybius, can be found in the boxes below.
Ὅρκος, ὃν ἔθετο Ἀννίβας ὁ στρατηγός, Μάγωνος, Μύρκανος, Βαρμόκαρος, καὶ πάντες γερουσιασταὶ Καρχηδονίων οἱ μετ' αὐτοῦ καὶ πάντες Καρχηδόνιοι στρατευόμενοι μετ' αὐτοῦ πρὸς Ξενοφάνη Κλεομάχου Ἀθηναῖον πρεσβευτήν, ὃν ἀπέστειλε πρὸς ἡμᾶς Φίλιππος ὁ βασιλεὺς Δημητρίου ὑπὲρ αὑτοῦ καὶ Μακεδόνων καὶ τῶν συμμάχων
Ἀννίβας ὁ στρατηγὸς εἶπε καὶ πάντες Καρχηδονίων γερουσιασταὶ οἱ μετ' αὐτοῦ καὶ πάντες Καρχηδόνιοι οἱ στρατευόμενοι μετ' αὐτοῦ, ὃ ἂν δοκῇ ὑμῖν καὶ ἡμῖν, τὸν ὅρκον τοῦτον θέσθαι περὶ φιλίας καὶ εὐνοίας καλῆς, φίλους καὶ οἰκείους καὶ ἀδελφούς,


This is a sworn treaty made between Hannibal, Mago, Barmocarus, and such members of the Carthaginian Gerousia as were present, and all Carthaginians serving in his army, on the one part; and Xenophanes, son of Cleomachus of Athens, sent to us by King Philip, as his ambassador, on behalf of himself, the Macedonians, and their allies, on the other part.
Hannibal, general, and all the Carthaginian senators with him, and all Carthaginians serving in his army, subject to our mutual consent, proposes to make this sworn treaty of friendship and honourable good-will. Let us be friends, close allies, and brethren, on the conditions herein following:
Once the treaty was completed, the delegation and Carthaginians officers Mago, Gisgo and Bostar, undertook the return journey to Macedonia to obtain Philip's signature. Their ship was, however, intercepted by Roman warships led by Valerius Flaccus, who did not believe Xenophanes' story and ordered a search of the vessel and its occupants. The discovery of Punic apparel and of the treaty itself prompted Flaccus to send the delegation as prisoners to Rome on five ships, so as to keep them separate and limit the risk of escape. After a brief stop in Cumae for further interrogation by consul Tiberius Sempronius Graccus, the delegation faced the Senate and was incarcerated. Only one member of the delegation managed to escape and return to Macedon, where he was unable to fully recollect the exact terms of the treaty to king Philip. Therefore, Philip was forced to send a second delegation to meet Hannibal and draft the agreement anew.
In response to the threat presented by the Macedonian-Carthaginian alliance, the Senate decreed that twenty-five ships be added to the contingent already under Flaccus' command and sent to Apulia, where they were expected to monitor Philip's movements.
In reality, because summer had elapsed by the time the second delegation reached Hannibal and concluded the treaty, its terms were never executed. Furthermore, the discovery of the alliance by the Roman senate nullified the element of surprise, which greatly diminished the treaty's value in the context of the Second Punic War. Nevertheless, the discovery of the treaty led to debates in the Roman Senate about how to handle Macedonia and, eventually led to the outbreak of the First Macedonian War. This conflict was centred largely in Illyria but included Greece due to Rome's allies there simultaneously waging war against Macedonia.

On the Second Punic war