markdienekes
Chieftain
- Joined
- Apr 25, 2011
- Messages
- 48
Hannibal: Reforms and Cities
Hannibal was much more than a general, and it is a shame his activities after Zama are not as well documented as his activities during the Second Punic War. He did much for Carthage after the war - remaining as a general after Zama for about two years (up to 200BC) and before he was a sufete, he spent his time reimposing Carthage's control over her Libyan subjects inland at least as far as Sicca and eastwards to the Gulf of Sirte.
He also started repairing the damage done by Scipio and Masinissa's campaigns and began replanting olive trees. Not only would this restore state authority, it would keep his remaining troops usefully busy until they could be paid off.
Before Hannibal was a sufete, in 197 the treasury was close to collapse, due to the corruption of some members of the court of 104, they had even tried to fool the Romans by giving them serious adulterated talents in 199, strained relations with their own people, and even worse, Masinissa. Citizens had to pay out of their own money for the year's war-indemnity, making up for the self-enriched idiots of the court of 104.
In 196, Hannibal took office and acted swiftly, investigating the corrupt court, hauling the recalcitrant before the citizen assembly, and passing a new law that removed judges lifetime tenure, made membership annually electable and also banned re-election for a second consecutive year.
He next enacted reforms that cleaned up the treasury and recovered much of the stolen money. The special tax was dropped, enriching the public.
He oversaw the physical development of a new residential and commercial district which was built on unused ground on the southern slope of the Bysra hill. It had carefully laid out, well-drained streets lined by shops and apartments with Greek style peristyle courtyards. This area was named the 'quartier Hannibal' by archeologists and prospered until the fall of Carthage.
His reforms succeeded, and really, he achieved more for his country in one year than he did for the twenty he was in Spain and Italy.
When he was forced into exile, he even helped design and build a couple of cities:
It is said that Hannibal the Carthaginian, after Antiochus had been conquered by the Romans, left him and went to Artaxas the Armenian, to whom he gave many excellent suggestions and instructions. For instance, observing that a section of the country which had the greatest natural advantages and attractions was lying idle and neglected, he drew up a plan for a city there, and then brought Artaxas to the place and showed him its possibilities, and urged him to undertake the building. The king was delighted, and begged Hannibal to superintend the work himself, whereupon a very great and beautiful city arose there, which was named after the king, and proclaimed the capital of Armenia.
(Plutarch, Lucullus, 31,)
which has survived and is called Artashat today, lying 20 miles south of Yemen.
When in Bithynia, King Prusias too asked him to design and foresee the building of another city, which was named Prusa and today stands as Bursa, and is reminiscent of Artaxata.
Bibliography
Hannibal: Rome's Greatest Enemy by Dexter Hoyos
Hannibal's Invasion Force: By the Numbers
When Hannibal left New Carthage during the late Spring of 218 BC, according to Polybius his army amounted to 90,000 infantry, 12,000 cavalry (Polybius, 3.35), while Appian adds 37 elephants to the number. Clearly, the size of his infantry and cavalry are exaggerated, and the true size of Hannibal's invasion force will not be known with certainty, but there are a few considerations – particularly logistical – to take into account when viewing these figures.
First we must discover the reported figures for the size of the Carthaginian army before Hannibal took over – when Hasdrubal the Fair was in charge. According to Diodorus, in retaliation for the betrayal and killing of Hannibal's father, Hamilcar in 225 BC, Hasdrubal moved against the Oretani with an army made up of 50,000 infantry, 6,000 cavalry and 200 elephants (Gabriel, Hannibal, p.72). Four years later, after his assassination and Hannibal took command, that number had increased to 60,000 infantry and 8,000 cavalry - in a four year time period (225-221 BC) the number had risen 10,000 and 2000 respectively. It was with this army Hannibal conducted two successful campaigns against the Spanish between 221-218 BC, along with the siege of Saguntum before retiring his troops to winter quarters. If we take Polybius' numbers, we have to believe that Hannibal had just a matter of months to raise 30,000 infantry and 4000 cavalry to make up this number over the course of the winter.
Polybius tells us that Hannibal also left behind a force with his brother, Hasdrubal, made up of 12,650 infantry and 2550 cavalry to guard the Spanish coast. In order to do this Hannibal would have had to make up 42,000 new infantry and 6,550 new cavalry in the winter to be able to raise the force for Hasdrubal and still have 90,000 infantry and 12,000 cavalry declared by Polybius in the few months of winter. Gabriel believes new reinforcements could not have come from Carthage. The reported troop transfers were nothing more than swapping Spanish infantry for more reliable African infantry with no real gain of numerical strength. (Gabriel, Hannibal, pp.101-3).
Engels (Alexander the Great, pp.3-18)has estimated that there was one mule per 50 men for transport, and one camp follower for every three soldiers – which would increase the total number of people to 136,000 for Hannibal's march. Per day per man would need 3 pounds of rations. This would make it necessary that a total of 408,000 pounds of rations had to be obtained daily to feed the troops. Add to this the 120,000 pounds of grain needed for the horses per day. Around 2700 pack animals would be needed to carry this amount of food for a day, plus another 2000 or so for equipment and heavy baggage. To feed these pack animals, troops and horses for ten days, one would need 55,520 pack animals:
(Shean, Hannibal's Mules, p.171 Table 1)
Gabriel has calculated the length of Hannibal's column would have been more than 100 miles long based on American logistical calculations that an infantry brigade comprising 6310 men and 1021 animals occupied a road space of 4.8 miles, (Gabriel, p.103) – a column of Hannibal's length could not make the reported 80 stades (9 miles) a day that Polybius implies was Hannibal's rate of movement (Polyb. 3.50)
What then, were his numbers? We have to take into account of attrition during Hannibal's campaigns in Spain from 221-218 BC – but we have very little to estimate casualty figures. Gabriel assumes that we should look at a 10 percent casualty figure for these campaigns (including Saguntum) which would make the figure of Hannibal's army before he dispersed for winter around 54,000 infantry and 7000 horse. From this we can deduct the force given to Hasdrubal Barca leaving Hannibal's invasion force a much more manageable 40,000 infantry and 5000 cavalry.
With this force he supposedly fought four tribes north of the Ebro river; the Ilurgetes, the Bargusii, the Aerenosii and the Andosini, leaving Hanno in command of a force made up of 10,000 infantry and 1000 cavalry (along with his heavy baggage) to defend the region. The only tribe of significance were the Ilurgetes, and even coming up against token resistance Hannibal could not have marched an army 100,000 strong in the time Polybius and Livy imply Hannibal took to cover the distance from the Ebro to Emporion.
What then, was the purpose of Hanno's force? We have to question its historicity by the actions that followed. Hanno was reportedly more than 150 miles south of the only strategic location in the region; that of the Greek coastal city of Emporion, supposedly fighting rebels. Hanno did not attempt to lay siege to the city that would see Gnaeus Scipio disembark at the head of a Roman army a few months later. Hanno made no attempt to protect the Spanish coast. The answer was his force was unable to conduct offensive operations. It is more likely that Hannibal did not in fact leave such a force behind as it would have achieved nothing of significance in the region, being unable to defend the Spanish coast or capture the strategic Greek city of Emporion (Gabriel, p.105-6). Hannibal only had around 40,000 troops, and could hardly have afforded to leave such a pointless force behind. More likely, his plan was to defend and hold the line at the Ebro River, where Hasdrubal's main force was located, and where there was friendly tribes and well supplied magazines and solid interior lines linking up with New Carthage. Hannibal was well aware that he could not defend the area north of the Ebro sufficiently against Rome's superior numbers of warships and transports.
Naturally, any attempt to discover the true figure is impossible, and the above analysis is flawed due to the nature of reported ancient figures and ancient sources in general - but Gabriel's approach is certainly an interesting and fresh perspective of the numbers - despite the unreliability of the source figure of Diodorus' in regards to the size of Hasdrubal the Fair's army in 225 BC!
Bibliography
Polybius, The Rise of the Roman Empire, Penguin Classics, 1979
Gabriel, Hannibal, Potomac Books, 2011
Shean, Hannibal's Mules, 1996
The Battle of Zama, 202 BC
A match up in history of arguably the two greatest commanders of their day, and among the best of the ancient world. The battle, fought in 202 BC, was the last battle of the Second Punic War, and one which began Rome's domination of the Mediterranean.
Number of troops and organisation
Hannibal's Forces and Deployment:
Hannibal's infantry were set up in three lines, each line generally agreed to have been made up of 12,000 men for a total of 36,000 infantry and 2000 Carthaginian citizen cavalry.
The Numidian Prince Tychaeus brought 2000 cavalry.
A force of 80 elephants (which has been doubted by Richard Gabriel who suggests as it takes up to 20 years to train war elephants to a sufficient standard, the Carthaginians had already used up their best in the war already. De Sanctis and Gabriel believe there was more likely only about 20 young and inexperienced elephants in Hannibal's army)
Total Strength: 40,000 (though Appian says 50,000, but this is generally rejected by modern historians)
Deployment: Hannibal drew up his infantry in 3 lines, each 12,000 strong (though it's possible his third line of veterans was made up of more, perhaps some 15,000 men). The first line were mercenaries: Ligurians, Celts, Balearic Islanders and Moors, and had been raised by Mago (who had died returning from Italy in 203 BC). In front of this line were light armed skirmishers and 80 elephants. At a certain distance behind the first line, the second consisted of native Libyans and Carthaginians. They were given orders not to support the first line, but to follow behind and keep their distance. The third line was at a greater distance from the second, more than a furlong, and were Hannibal's Old Guard, his veterans from Italy, thought to have been made up of mostly Bruttians, but no doubt some of the old survivors who had marched with him from Spain too, who would have been in their 40s at least by now. They were to act as an independent reserve, and halted when the first two lines advanced, creating an even bigger gap between them. Hannibal posted his cavalry on the wings, with the Numidians on the left, and the Carthaginians on the right.
Scipio's Forces and Deployment:
There are no solid figures for the size of Scipio's army, but it is usually reckoned to have been made up of about 30,000 infantry (including 6,000 Numidians) and over 6,100 cavalry (1,500 Roman and Italian, 4,600 Numidian)
Total Strength: 36,100
Deployment: Scipio deployed his troops in the usual three line formation – but instead of the principes covering the gaps of the hastati maniples, they were set up directly behind them, the triarii forming the final line. The intervals between the front maniples were filled with companies of velites. This created lanes, which he hid from Hannibal with the velites. Laelius' Italian horse was on the left wing, and Masinissa and all his Numidians on the right. (the Numdian infantry are fought to have either been placed with the velites, on the flanks of the Roman legionaries, or mixed in with the Numidian horse. I believe they were most likely mixed in with the velites, sadly it is impossible to determine – maybe just have them on the legionary flanks would be easier!)
The Battle:
Phase 1:
The skirmishers open up the battle in the plain between the two armies, but neither side gains an advantage.
Phase 2:
Hannibal orders his elephants to charge, hoping they will strike a hammer blow against the Roman infantry. The skirmishers on both sides disperse as the elephants charge forward.
Phase 3:
Hannibal orders his army forward following the elephant charge. Scipio orders the horns and trumpets to blast and panics the young elephants, causing some of them to stampede through Hannibal's Numdian cavalry on the Punic left flank.
Phase 4:
Masinissa charges Hannibal's Numdians, and sweeps them from the field. The elephants however have reached the main Roman line. Some are driven back, some are killed, while others are drawn through the lanes and killed. Roman losses are heavy, (thought to be mainly among the velites) but they hold their ranks. Some elephants stampede towards Hannibal's cavalry on the right flank, disrupting formations.
Phase 5:
Laelius charges the disrupted Carthaginian cavalry and routs them. The fight is now an infantry battle. Hannibal orders his first two lines forward and the Romans redress their ranks and advance to meet them.
Phase 6:
The mercenaries of the first rank are broken, Roman short swords and discipline gaining the upper-hand. The mercenaries flee but their path is blocked by the Carthaginian levies in the second line. Fighting breaks out amongst Hannibal's first two lines as the mercenaries try to cut their way through the levies ranks to freedom, (Gabriel belives this is a misunderstanding, and Hannibal ordered the second line forward to engage the Romans, trapping some of the mercenaries). Trapped between the second line and the Romans, the mercenaries are hacked to pieces and are destroyed.
Phase 7:
The Carthaginian line counterattacks and presses the hastati back in some confusion. They rally only because the principes stand firm, and together they drive back the Carthaginian levies until they break. Hannibal's third line rebuffs the broken second line's attempts to force through the line who are driven to the open plains on the flanks.
Phase 8:
Scipio redresses his formation, and lengthens his line so that the principes and triarii are on the hastati flanks. As Scipio was organising his men, Hannibal also reorganised his line, adding those that had survived and not ran from the field from the first two ranks - and deploying them onto the flanks of his veteran line.
Phase 9:
The lines meet, and the battle hangs in the balance, but the return of the cavalry tips the scales into Scipio's favour, and the cavalry charge into the rear of the Carthaginians. Hannibal's veterans put up a final stand but most are killed. Hannibal manages to flee.
Result:
Hannibal suffers his only serious defeat, and it is a crushing one. The Carthaginian losses are around 20,000, with nearly as many taken prisoner. Roman casualties are said to have been 1,500 to 2,500, though we are not told of Masinissa's losses other than they suffered greater losses than the Romans did.
Conclusions and notes:
Two thirds of Hannibal's infantry force were unreliable, a third completely freshly levied, only the third line made up of his veterans of Italy were an instrument of Hannibal's will. The rest were made up of disparate armies that had yet to gel. Scipio's infantry were a homogenous force and very experienced, made up of veterans who had seen constant service since at least 216 BC (made up of the remnants of Cannae, and the two battles of Herdonia, who continued to fight and campaign in Sicily and then in Africa) - Scipio's infantry had the advantage overall - not in numbers, but in organization and overall experience.
Hannibal is also thought to have devised a plan to level the playing field in regards to the cavalry. Both H.H Scullard and Richard Gabriel believe Hannibal gave them the order to give ground and drive the opposition off the field, which could explain the ease of the Roman victory here (though against this they may well have just perused too far, and Lazenby believes that it would have been very risky to expose his flanks like this). With the cavalry off the field, Hannibal's only chance of victory would be to break the Roman centre, thus he threw all his weight against the numerically inferior Romans, starting with the elephants, then three waves of infantry. The strategy almost worked, as we can see the hastati were exhausted after their struggles against the first two lines. It is also thought that Hannibal set up the third line to prevent Scipio's infantry flanking his first two lines,.
Scipio's own tactics were the set up of his maniples and the use of the lanes to funnel the elephants, and the extension of his line to engage Hannibal's veterans. Scipio's tactics relied on turning the phalanx into echelon, which he did by discarding the usual quincunx formation by placing the triarii and principes back from the front line making the last two lines capable of independent manoeuvre, which Hannibal nullified completely with the use of his third line, thus Scipio engaged in the normal Roman frontal slog rather than use his manoeuvres from earlier battles. Hannibal's third line also is considered the first true reserve in history. Gabriel believes out of the two plans, Hannibal's was the most sophisticated (Gabriel, p.199)
Scipio's legions were superior infantry and cavalry wise, disciplined to the degree that they responded very quickly and efficiently to re-calls and re-distributions. But they were stopped in their tracks by Hannibal and his veterans.
Strategically before the battle, both were considering the same objective, to reach their allies from the west (mainly for cavalry support); Scipio was searching for Massinissa, Hannibal for Vermina and both generals moved their armies towards them. It was a risk on both their parts as they had no control over it, but perhaps Scipio had more reliable information where Massinissa was. Massinissa arrived first at any rate. Vermina arrived just a few days too late to help Hannibal, and was bringing a large force to compliment the Carthaginian which Livy puts at 16,200 men. Livy's date that the battle against Vermina happened three months after Zama makes no sense as Vermina would not sally forth to Zama to fight Scipio's army unless he was there to support Hannibal.
The story of Hannibal being too far from water also appears suspicious. According to Gabriel (p.191):
Why Hannibal would have made such a basic mistake in not providing water for his army and animals in the obviously hot and dry climate is not explained...
It's interesting to wonder what just may have happened had Hannibal linked up with Vermina's force in time...
Bibliography:
Carey, Hannibal's Last Battle: Zama & the Fall of Carthage, 2007
Gabriel, Scipio Africanus: Rome's Greatest General, 2008
Gabriel, Hannibal, 2011
Lazenby, Hannibal's War, 1997
Scullard, Scipio Africanus: Soldier and Politician, 1970
Hannibal was much more than a general, and it is a shame his activities after Zama are not as well documented as his activities during the Second Punic War. He did much for Carthage after the war - remaining as a general after Zama for about two years (up to 200BC) and before he was a sufete, he spent his time reimposing Carthage's control over her Libyan subjects inland at least as far as Sicca and eastwards to the Gulf of Sirte.
He also started repairing the damage done by Scipio and Masinissa's campaigns and began replanting olive trees. Not only would this restore state authority, it would keep his remaining troops usefully busy until they could be paid off.
Before Hannibal was a sufete, in 197 the treasury was close to collapse, due to the corruption of some members of the court of 104, they had even tried to fool the Romans by giving them serious adulterated talents in 199, strained relations with their own people, and even worse, Masinissa. Citizens had to pay out of their own money for the year's war-indemnity, making up for the self-enriched idiots of the court of 104.
In 196, Hannibal took office and acted swiftly, investigating the corrupt court, hauling the recalcitrant before the citizen assembly, and passing a new law that removed judges lifetime tenure, made membership annually electable and also banned re-election for a second consecutive year.
He next enacted reforms that cleaned up the treasury and recovered much of the stolen money. The special tax was dropped, enriching the public.
He oversaw the physical development of a new residential and commercial district which was built on unused ground on the southern slope of the Bysra hill. It had carefully laid out, well-drained streets lined by shops and apartments with Greek style peristyle courtyards. This area was named the 'quartier Hannibal' by archeologists and prospered until the fall of Carthage.
His reforms succeeded, and really, he achieved more for his country in one year than he did for the twenty he was in Spain and Italy.
When he was forced into exile, he even helped design and build a couple of cities:
It is said that Hannibal the Carthaginian, after Antiochus had been conquered by the Romans, left him and went to Artaxas the Armenian, to whom he gave many excellent suggestions and instructions. For instance, observing that a section of the country which had the greatest natural advantages and attractions was lying idle and neglected, he drew up a plan for a city there, and then brought Artaxas to the place and showed him its possibilities, and urged him to undertake the building. The king was delighted, and begged Hannibal to superintend the work himself, whereupon a very great and beautiful city arose there, which was named after the king, and proclaimed the capital of Armenia.
(Plutarch, Lucullus, 31,)
which has survived and is called Artashat today, lying 20 miles south of Yemen.
When in Bithynia, King Prusias too asked him to design and foresee the building of another city, which was named Prusa and today stands as Bursa, and is reminiscent of Artaxata.
Bibliography
Hannibal: Rome's Greatest Enemy by Dexter Hoyos
Hannibal's Invasion Force: By the Numbers
When Hannibal left New Carthage during the late Spring of 218 BC, according to Polybius his army amounted to 90,000 infantry, 12,000 cavalry (Polybius, 3.35), while Appian adds 37 elephants to the number. Clearly, the size of his infantry and cavalry are exaggerated, and the true size of Hannibal's invasion force will not be known with certainty, but there are a few considerations – particularly logistical – to take into account when viewing these figures.
First we must discover the reported figures for the size of the Carthaginian army before Hannibal took over – when Hasdrubal the Fair was in charge. According to Diodorus, in retaliation for the betrayal and killing of Hannibal's father, Hamilcar in 225 BC, Hasdrubal moved against the Oretani with an army made up of 50,000 infantry, 6,000 cavalry and 200 elephants (Gabriel, Hannibal, p.72). Four years later, after his assassination and Hannibal took command, that number had increased to 60,000 infantry and 8,000 cavalry - in a four year time period (225-221 BC) the number had risen 10,000 and 2000 respectively. It was with this army Hannibal conducted two successful campaigns against the Spanish between 221-218 BC, along with the siege of Saguntum before retiring his troops to winter quarters. If we take Polybius' numbers, we have to believe that Hannibal had just a matter of months to raise 30,000 infantry and 4000 cavalry to make up this number over the course of the winter.
Polybius tells us that Hannibal also left behind a force with his brother, Hasdrubal, made up of 12,650 infantry and 2550 cavalry to guard the Spanish coast. In order to do this Hannibal would have had to make up 42,000 new infantry and 6,550 new cavalry in the winter to be able to raise the force for Hasdrubal and still have 90,000 infantry and 12,000 cavalry declared by Polybius in the few months of winter. Gabriel believes new reinforcements could not have come from Carthage. The reported troop transfers were nothing more than swapping Spanish infantry for more reliable African infantry with no real gain of numerical strength. (Gabriel, Hannibal, pp.101-3).
Engels (Alexander the Great, pp.3-18)has estimated that there was one mule per 50 men for transport, and one camp follower for every three soldiers – which would increase the total number of people to 136,000 for Hannibal's march. Per day per man would need 3 pounds of rations. This would make it necessary that a total of 408,000 pounds of rations had to be obtained daily to feed the troops. Add to this the 120,000 pounds of grain needed for the horses per day. Around 2700 pack animals would be needed to carry this amount of food for a day, plus another 2000 or so for equipment and heavy baggage. To feed these pack animals, troops and horses for ten days, one would need 55,520 pack animals:

(Shean, Hannibal's Mules, p.171 Table 1)
Gabriel has calculated the length of Hannibal's column would have been more than 100 miles long based on American logistical calculations that an infantry brigade comprising 6310 men and 1021 animals occupied a road space of 4.8 miles, (Gabriel, p.103) – a column of Hannibal's length could not make the reported 80 stades (9 miles) a day that Polybius implies was Hannibal's rate of movement (Polyb. 3.50)
What then, were his numbers? We have to take into account of attrition during Hannibal's campaigns in Spain from 221-218 BC – but we have very little to estimate casualty figures. Gabriel assumes that we should look at a 10 percent casualty figure for these campaigns (including Saguntum) which would make the figure of Hannibal's army before he dispersed for winter around 54,000 infantry and 7000 horse. From this we can deduct the force given to Hasdrubal Barca leaving Hannibal's invasion force a much more manageable 40,000 infantry and 5000 cavalry.
With this force he supposedly fought four tribes north of the Ebro river; the Ilurgetes, the Bargusii, the Aerenosii and the Andosini, leaving Hanno in command of a force made up of 10,000 infantry and 1000 cavalry (along with his heavy baggage) to defend the region. The only tribe of significance were the Ilurgetes, and even coming up against token resistance Hannibal could not have marched an army 100,000 strong in the time Polybius and Livy imply Hannibal took to cover the distance from the Ebro to Emporion.
What then, was the purpose of Hanno's force? We have to question its historicity by the actions that followed. Hanno was reportedly more than 150 miles south of the only strategic location in the region; that of the Greek coastal city of Emporion, supposedly fighting rebels. Hanno did not attempt to lay siege to the city that would see Gnaeus Scipio disembark at the head of a Roman army a few months later. Hanno made no attempt to protect the Spanish coast. The answer was his force was unable to conduct offensive operations. It is more likely that Hannibal did not in fact leave such a force behind as it would have achieved nothing of significance in the region, being unable to defend the Spanish coast or capture the strategic Greek city of Emporion (Gabriel, p.105-6). Hannibal only had around 40,000 troops, and could hardly have afforded to leave such a pointless force behind. More likely, his plan was to defend and hold the line at the Ebro River, where Hasdrubal's main force was located, and where there was friendly tribes and well supplied magazines and solid interior lines linking up with New Carthage. Hannibal was well aware that he could not defend the area north of the Ebro sufficiently against Rome's superior numbers of warships and transports.
Naturally, any attempt to discover the true figure is impossible, and the above analysis is flawed due to the nature of reported ancient figures and ancient sources in general - but Gabriel's approach is certainly an interesting and fresh perspective of the numbers - despite the unreliability of the source figure of Diodorus' in regards to the size of Hasdrubal the Fair's army in 225 BC!
Bibliography
Polybius, The Rise of the Roman Empire, Penguin Classics, 1979
Gabriel, Hannibal, Potomac Books, 2011
Shean, Hannibal's Mules, 1996
The Battle of Zama, 202 BC
A match up in history of arguably the two greatest commanders of their day, and among the best of the ancient world. The battle, fought in 202 BC, was the last battle of the Second Punic War, and one which began Rome's domination of the Mediterranean.
Number of troops and organisation
Hannibal's Forces and Deployment:
Hannibal's infantry were set up in three lines, each line generally agreed to have been made up of 12,000 men for a total of 36,000 infantry and 2000 Carthaginian citizen cavalry.
The Numidian Prince Tychaeus brought 2000 cavalry.
A force of 80 elephants (which has been doubted by Richard Gabriel who suggests as it takes up to 20 years to train war elephants to a sufficient standard, the Carthaginians had already used up their best in the war already. De Sanctis and Gabriel believe there was more likely only about 20 young and inexperienced elephants in Hannibal's army)
Total Strength: 40,000 (though Appian says 50,000, but this is generally rejected by modern historians)
Deployment: Hannibal drew up his infantry in 3 lines, each 12,000 strong (though it's possible his third line of veterans was made up of more, perhaps some 15,000 men). The first line were mercenaries: Ligurians, Celts, Balearic Islanders and Moors, and had been raised by Mago (who had died returning from Italy in 203 BC). In front of this line were light armed skirmishers and 80 elephants. At a certain distance behind the first line, the second consisted of native Libyans and Carthaginians. They were given orders not to support the first line, but to follow behind and keep their distance. The third line was at a greater distance from the second, more than a furlong, and were Hannibal's Old Guard, his veterans from Italy, thought to have been made up of mostly Bruttians, but no doubt some of the old survivors who had marched with him from Spain too, who would have been in their 40s at least by now. They were to act as an independent reserve, and halted when the first two lines advanced, creating an even bigger gap between them. Hannibal posted his cavalry on the wings, with the Numidians on the left, and the Carthaginians on the right.
Scipio's Forces and Deployment:
There are no solid figures for the size of Scipio's army, but it is usually reckoned to have been made up of about 30,000 infantry (including 6,000 Numidians) and over 6,100 cavalry (1,500 Roman and Italian, 4,600 Numidian)
Total Strength: 36,100
Deployment: Scipio deployed his troops in the usual three line formation – but instead of the principes covering the gaps of the hastati maniples, they were set up directly behind them, the triarii forming the final line. The intervals between the front maniples were filled with companies of velites. This created lanes, which he hid from Hannibal with the velites. Laelius' Italian horse was on the left wing, and Masinissa and all his Numidians on the right. (the Numdian infantry are fought to have either been placed with the velites, on the flanks of the Roman legionaries, or mixed in with the Numidian horse. I believe they were most likely mixed in with the velites, sadly it is impossible to determine – maybe just have them on the legionary flanks would be easier!)
The Battle:
Phase 1:
The skirmishers open up the battle in the plain between the two armies, but neither side gains an advantage.
Phase 2:
Hannibal orders his elephants to charge, hoping they will strike a hammer blow against the Roman infantry. The skirmishers on both sides disperse as the elephants charge forward.
Phase 3:
Hannibal orders his army forward following the elephant charge. Scipio orders the horns and trumpets to blast and panics the young elephants, causing some of them to stampede through Hannibal's Numdian cavalry on the Punic left flank.
Phase 4:
Masinissa charges Hannibal's Numdians, and sweeps them from the field. The elephants however have reached the main Roman line. Some are driven back, some are killed, while others are drawn through the lanes and killed. Roman losses are heavy, (thought to be mainly among the velites) but they hold their ranks. Some elephants stampede towards Hannibal's cavalry on the right flank, disrupting formations.
Phase 5:
Laelius charges the disrupted Carthaginian cavalry and routs them. The fight is now an infantry battle. Hannibal orders his first two lines forward and the Romans redress their ranks and advance to meet them.
Phase 6:
The mercenaries of the first rank are broken, Roman short swords and discipline gaining the upper-hand. The mercenaries flee but their path is blocked by the Carthaginian levies in the second line. Fighting breaks out amongst Hannibal's first two lines as the mercenaries try to cut their way through the levies ranks to freedom, (Gabriel belives this is a misunderstanding, and Hannibal ordered the second line forward to engage the Romans, trapping some of the mercenaries). Trapped between the second line and the Romans, the mercenaries are hacked to pieces and are destroyed.
Phase 7:
The Carthaginian line counterattacks and presses the hastati back in some confusion. They rally only because the principes stand firm, and together they drive back the Carthaginian levies until they break. Hannibal's third line rebuffs the broken second line's attempts to force through the line who are driven to the open plains on the flanks.
Phase 8:
Scipio redresses his formation, and lengthens his line so that the principes and triarii are on the hastati flanks. As Scipio was organising his men, Hannibal also reorganised his line, adding those that had survived and not ran from the field from the first two ranks - and deploying them onto the flanks of his veteran line.
Phase 9:
The lines meet, and the battle hangs in the balance, but the return of the cavalry tips the scales into Scipio's favour, and the cavalry charge into the rear of the Carthaginians. Hannibal's veterans put up a final stand but most are killed. Hannibal manages to flee.
Result:
Hannibal suffers his only serious defeat, and it is a crushing one. The Carthaginian losses are around 20,000, with nearly as many taken prisoner. Roman casualties are said to have been 1,500 to 2,500, though we are not told of Masinissa's losses other than they suffered greater losses than the Romans did.
Conclusions and notes:
Two thirds of Hannibal's infantry force were unreliable, a third completely freshly levied, only the third line made up of his veterans of Italy were an instrument of Hannibal's will. The rest were made up of disparate armies that had yet to gel. Scipio's infantry were a homogenous force and very experienced, made up of veterans who had seen constant service since at least 216 BC (made up of the remnants of Cannae, and the two battles of Herdonia, who continued to fight and campaign in Sicily and then in Africa) - Scipio's infantry had the advantage overall - not in numbers, but in organization and overall experience.
Hannibal is also thought to have devised a plan to level the playing field in regards to the cavalry. Both H.H Scullard and Richard Gabriel believe Hannibal gave them the order to give ground and drive the opposition off the field, which could explain the ease of the Roman victory here (though against this they may well have just perused too far, and Lazenby believes that it would have been very risky to expose his flanks like this). With the cavalry off the field, Hannibal's only chance of victory would be to break the Roman centre, thus he threw all his weight against the numerically inferior Romans, starting with the elephants, then three waves of infantry. The strategy almost worked, as we can see the hastati were exhausted after their struggles against the first two lines. It is also thought that Hannibal set up the third line to prevent Scipio's infantry flanking his first two lines,.
Scipio's own tactics were the set up of his maniples and the use of the lanes to funnel the elephants, and the extension of his line to engage Hannibal's veterans. Scipio's tactics relied on turning the phalanx into echelon, which he did by discarding the usual quincunx formation by placing the triarii and principes back from the front line making the last two lines capable of independent manoeuvre, which Hannibal nullified completely with the use of his third line, thus Scipio engaged in the normal Roman frontal slog rather than use his manoeuvres from earlier battles. Hannibal's third line also is considered the first true reserve in history. Gabriel believes out of the two plans, Hannibal's was the most sophisticated (Gabriel, p.199)
Scipio's legions were superior infantry and cavalry wise, disciplined to the degree that they responded very quickly and efficiently to re-calls and re-distributions. But they were stopped in their tracks by Hannibal and his veterans.
Strategically before the battle, both were considering the same objective, to reach their allies from the west (mainly for cavalry support); Scipio was searching for Massinissa, Hannibal for Vermina and both generals moved their armies towards them. It was a risk on both their parts as they had no control over it, but perhaps Scipio had more reliable information where Massinissa was. Massinissa arrived first at any rate. Vermina arrived just a few days too late to help Hannibal, and was bringing a large force to compliment the Carthaginian which Livy puts at 16,200 men. Livy's date that the battle against Vermina happened three months after Zama makes no sense as Vermina would not sally forth to Zama to fight Scipio's army unless he was there to support Hannibal.
The story of Hannibal being too far from water also appears suspicious. According to Gabriel (p.191):
Why Hannibal would have made such a basic mistake in not providing water for his army and animals in the obviously hot and dry climate is not explained...
It's interesting to wonder what just may have happened had Hannibal linked up with Vermina's force in time...
Bibliography:
Carey, Hannibal's Last Battle: Zama & the Fall of Carthage, 2007
Gabriel, Scipio Africanus: Rome's Greatest General, 2008
Gabriel, Hannibal, 2011
Lazenby, Hannibal's War, 1997
Scullard, Scipio Africanus: Soldier and Politician, 1970