The senate recommended the people to elect, as one of their consuls, Caius Claudius Nero, a patrician of one of the families of the great Claudian house. Nero had served during the preceding years of the war, both against Hannibal in Italy, and against Hasdrubal in Spain; but it is remarkable that the histories, which we possess, record no successes as having been achieved by him either before or after his great campaign of the Metaurus. It proves much for the sagacity of the leading men of the senate, that they recognised in Nero the energy and spirit which were required at this crisis, and it is equally creditable to the patriotism of the people, that they followed the advice of the senate by electing a general who had no showy exploits to recommend him to their choice.

It was a matter of greater difficulty to find a second consul; the laws required that one consul should be a plebeian; and the plebeian nobility had been fearfully thinned by the events of the war. While the senators anxiously deliberated among themselves what fit colleague for Nero could be nominated at the coming comitia, and sorrowfully recalled the names of Marcellus, Gracchus, and other plebeian generals who were no more—one taciturn and moody old man sat in sullen apathy among the conscript fathers. This was Marcus Livius, who had been consul in the gear before the beginning of this war, and had then gained a victory over the Illyrians. After his consulship he had been impeached before the people on a charge of peculation and unfair division of the spoils among his soldiers: the verdict was unjustly given against him, and the sense of this wrong, and of the indignity thus put upon him, had rankled unceasingly in the bosom of Livius, so that for eight years after his trial he had lived in seclusion at his country seat, taking no part in any affairs of state. Latterly the censors had compelled him to come to Rome and resume his place in the senate, where he used to sit gloomily apart, giving only a silent vote. At last an unjust accusation against one of his near kinsmen made him break silence; and he harangued the house in words of weight and sense, which drew attention to him, and taught the senators that a strong spirit dwelt beneath that unimposing exterior. Now, while they were debating on what noble of a plebeian house was fit to assume the perilous honours of the consulate, some of the elder of them looked on Marcus Livius, and remembered that in the very last triumph which had been celebrated in the streets of Rome this grim old man had sat in the car of victory; and that he had offered the last grand thanksgiving sacrifice for the success of the Roman arms that had bled before Capitoline Jove. There had been no triumphs since Hannibal came into Italy. [Marcellus had been only allowed an ovation for the conquest of Syracuse.] The Illyrian campaign of Livius was the last that had been so honoured; perhaps it might be destined for him now to renew the long-interrupted series. The senators resolved that Livius should be put in nomination as consul with Nero; the people were willing to elect him; the only opposition came from himself. He taunted them with their inconsistency is honouring a man they had convicted of a base crime. "If I am innocent," said he, "why did you place such a stain on me? If I am guilty, why am I more fit for a second consulship than I was for my first one?" The other senators remonstrated with him urging the example of the great Camillus, who, after an unjust condemnation on a similar charge, both served and saved his country. At last Livius ceased to object; and Caius Claudius Nero and Marcus Livius were chosen consuls of Rome.

A quarrel had long existed between the two consuls, and the senators strove to effect a reconciliation between them before the campaign. Here again Livius for a long time obstinately resisted the wish of his fellow-senators. He said it was best for the state that he and Nero should continue to hate one another. Each would do his duty better, when he knew that he was watched by an enemy in the person of his own colleague. At last the entreaties of the senators prevailed, and Livius consented to forego the feud, and to co-operate with Nero in preparing for the coming struggle.

As soon as the winter snows were thawed, Hasdrubal commenced his march from Auvergne to the Alps. He experienced none of the difficulties which his brother had met with from the mountain tribes. Hannibal's army had been the first body of regular troops that had ever traversed the regions; and, as wild animals assail a traveller, the natives rose against it instinctively, in imagined defence of their own habitations, which they supposed to be the objects of Carthaginian ambition. But the fame of the war, with which Italy had now been convulsed for eleven years, had penetrated into the Alpine passes; and the mountaineers understood that a mighty city, southward of the Alps, was to be attacked by the troops whom they saw marching among them. They not only opposed no resistance to the passage of Hasdrubal, but many of them, out of the love of enterprise and plunder, or allured by the high pay that he offered, took service with him; and thus he advanced upon Italy with an army that gathered strength at every league. It is said, also, that some of the most important engineering works which Hannibal had constructed, were found by Hasdrubal still in existence, and materially favoured the speed of his advance. He thus emerged into Italy from the Alpine valleys much sooner than had been anticipated. Many warriors of the Ligurian tribes joined him; and, crossing the river Po, he marched down its southern bank to the city of Placentia, which he wished to secure as a base for his future operations. Placentia resisted him as bravely as it had resisted Hannibal eleven years before; and for some time Hasdrubal was occupied with a fruitless siege before its walls.

Six armies were levied for the defence of Italy when the long-dreaded approach of Hasdrubal was announced. Seventy thousand Romans served in the fifteen legions of which, with an equal number of Italian allies, those armies and the garrisons were composed. Upwards of thirty thousand more Romans were serving in Sicily, Sardinia, and Spain. The whole number of Roman citizens of an age fit for military duty scarcely exceeded a hundred and thirty thousand. The census taken before the war had shown a total of two hundred and seventy thousand, which had been diminished by more than half during twelve years. These numbers are fearfully emphatic of the extremity to which Rome was reduced, and of her gigantic efforts in that great agony of her fate. Not merely men, but money and military stores, were drained to the utmost; and if the armies of that year should be swept off by a repetition of the slaughters of Thrasymene and Cannae, all felt that Rome would cease to exist. Even if the campaign were to be marked by no decisive success on either side, her ruin seemed certain. In South Italy Hannibal had either detached Rome's allies from her, or had impoverished them by the ravages of his army. If Hasdrubal could have done the same in Upper Italy; if Etruria, Umbria, and Northern Latium had either revolted or been laid waste, Rome must have sunk beneath sheer starvation; for the hostile or desolated territory would have yielded no supplies of corn for her population; and money, to purchase it from abroad, there was none. Instant victory was a matter of life and death. Three of her six armies were ordered to the north, but the first of these was required to overawe the disaffected Etruscans. The second army of the north was pushed forward, under Porcius, the praetor, to meet and keep in, check the advanced troops of Hasdrubal; while the third, the grand army of the north, which was to be under the immediate command of the consul Livius, who had the chief command in all North Italy, advanced more slowly in its support. There were similarly three armies in the south, under the orders of the other consul Claudius Nero.

The lot had decided that Livius was to be opposed to Hasdrubal, and that Nero should face Hannibal. And "when all was ordered as themselves thought best, the two consuls went forth of the city; each his several way. The people of Rome were now quite otherwise affected, than they had been, when L. AEmilius Paulus and C. Tarentius Varro were sent against Hannibal. They did no longer take upon them to direct their generals, or bid them dispatch, and win the victory betimes; but rather they stood in fear, lest all diligence, wisdom, and valour should prove too little. For since, few years had passed, wherein some one of their generals had not been slain; and since it was manifest, that if either of these present consuls were defeated, or put to the worst, the two Carthaginians would forthwith join, and make short work with the other: it seemed a greater happiness than could be expected, that each of them should return home victor; and come off with honour from such mighty opposition as he was like to find. With extreme difficulty had Rome held up her head ever since the battle of Cannae; though it were so, that Hannibal alone, with little help from Carthage, had continued the war in Italy. But there was now arrived another son of Amilcar; and one that, in his present expedition, had seemed a man of more sufficiency than Hannibal himself. For, whereas in that long and dangerous march through barbarous nations, over great rivers and mountains, that were thought unpassable, Hannibal had lost a great part of his army; this Asdrubal, in the same places, had multiplied his numbers; and gathering the people that he found in the way, descended from the Alps like a rolling snow-ball, far greater than he came over the Pyrenees at his first setting out of Spain. These considerations, and the like, of which fear presented many unto them, caused the people of Rome to wait upon their consuls out of the town, like a pensive train of mourners; thinking upon Marcellus and Crispinus, upon whom, in the like sort, they had given attendance the last year, but saw neither of them return alive from a less dangerous war. Particularly old Q. Fabius gave his accustomed advice to M. Livius, that he should abstain from giving or taking battle, until he well understood the enemies' condition. But the consul made him a froward answer, and said, that he would fight the very first day, for that he thought it long till he should either recover his honour by victory, or, by seeing the overthrow of his own unjust citizens, satisfy himself with the joy of a great, though not an honest revenge. But his meaning was better than his words." [Sir Walter Raleigh.]

Hannibal at this period occupied with his veteran but much reduced forces the extreme south of Italy. It had not been expected either by friend or foe, that Hasdrubal would effect his passage of the Alps so early in the year as actually occurred. And even when Hannibal learned that his brother was in Italy, and had advanced as far as Placentia, he was obliged to pause for further intelligence, before he himself commenced active operations, as he could not tell whether his brother might not be invited into Etruria, to aid the party there that was disaffected to Rome or whether he would march down by the Adriatic Sea. Hannibal led his troops out of their winter quarters in Bruttium, and marched northward as far as Canusium. Nero had his head-quarters near Venusia, with an army which he had increased to forty thousand foot and two thousand five hundred horse, by incorporating under his own command some of the legions which had been intended to set under other generals in the south. There was another Roman army twenty thousand strong, south of Hannibal, at Tarentum. The strength of that city secured this Roman force from any attack by Hannibal, and it was a serious matter to march northward and leave it in his rear, free to act against all his depots and allies in the friendly part of Italy, which for the last two or three campaigns had served him for a base of his operations. Moreover, Nero's army was so strong that Hannibal could not concentrate troops enough to assume the offensive against it without weakening his garrisons, and relinquishing, at least for a time, his grasp upon the southern provinces. To do this before he was certainly informed of his brother's operations would have been an useless sacrifice; as Nero could retreat before him upon the other Roman armies near the capital, and Hannibal knew by experience that a mere advance of his army upon the walls of Rome would have no effect on the fortunes of the war. In the hope, probably, of inducing Nero to follow him, and of gaining an opportunity of outmanoeuvring the Roman consul and attacking him on his march, Hannibal moved into Lucania, and then back into Apulis;—he again marched down into Bruttium, and strengthened his army by a levy of recruits in that district. Nero followed him, but gave him no chance of assailing him at a disadvantage. Some partial encounters seem to have taken place; but the consul could not prevent Hannibal's junction with his Bruttian levies, nor could Hannibal gain an opportunity of surprising and crushing the consul. Hannibal returned to his former head-quarters at Canusium, and halted there in expectation of further tidings of his brother's movements. Nero also resumed his former position in observation of the Carthaginian army.

[The annalists whom Livy copied, spoke of Nero's gaining repeated victories over Hannibal, and killing; and taking his men by tens of thousands. The falsehood of all this is self-evident. If Nero could thus always beat Hannibal, the Romans would not have been in such an agony of dread about Hasdrubal, as all writers describe. Indeed, we have the express testimony of Polybius that such statements as we read in Livy of Marcellus, Nero, and others gaining victories over Hannibal in Italy, must be all fabrications of Roman vanity. Polybius states (Lib. xv. sec. 16) that Hannibal was never defeated before the battle of Zama; and in another passage (Book ix. chap, 3) he mentions that after the defeats which Hannibal inflicted on the Romans in the early years of the war, they no longer dared face his army in a pitched battle on a fair field, and yet they resolutely maintained the war. He rightly explains this by referring to the superiority of Hannibal's cavalry the arm which gained him all his victories. By keeping within fortified lines, or close to the sides of the mountains when Hannibal approached them, the Romans rendered his cavalry ineffective; and a glance at the geography of Italy will show how an army can traverse the greater part of that country without venturing far from the high grounds.]

Meanwhile, Hasdrubal had raised the siege of Placentia, and was advancing towards Ariminum on the Adriatic, and driving before him the Roman army under Porcina. Nor when the consul Livius had come up, and united the second and third armies of the north, could he make head against the invaders. The Romans still fell back before Hasdrubal, beyond Ariminum, beyond the Metaurus, and as far as the little town of Sena, to the southeast of that river. Hasdrubal was not unmindful of the necessity of acting in concert with his brother. He sent messengers to Hannibal to announce his own line of march and to propose that they should unite their armies in South Umbria, and then wheel round against Rome. Those messengers traversed the greater part of Italy in safety; but, when close to the object of their mission, were captured by a Roman detachment; and Hasdrubal's letter, detailing his whole plan of the campaign, was laid, not in his brother's hands, but in those of the commander of the Roman armies of the south. Nero saw at once the full importance of the crisis. The two sons of Hamilcar were now within two hundred miles of each other, and if Rome were to be saved, the brothers must never meet alive. Nero instantly ordered seven thousand picked men, a thousand being cavalry, to hold themselves in readiness for a secret expedition against one of Hannibal's garrisons; and as soon as night had set in, he hurried forward on his bold enterprise: but he quickly left the southern road towards Lucania, and wheeling round, pressed northward with the utmost rapidity towards Picenum. He had, during the preceding afternoon, sent messengers to Rome, who were to lay Hasdrubal's letters before the senate. There was a law forbidding a consul to make war or to march his army beyond the limits of the province assigned to him; but in such an emergency Nero did not wait for the permission of the senate to execute his project, but informed them that he was already on his march to join Livius against Hasdrubal. He advised them to send the two legions which formed the home garrison, on to Narnia, so as to defend that pass of the Flaminian road against Hasdrubal, in case he should march upon Rome before the consular armies could attack him. They were to supply the place of those two legions at Rome by a levy EN MASSE in the city, and by ordering up the reserve legion from Capua. These were his communications to the senate. He also sent horseman forward along his line of march, with orders to the local authorities to bring stores of; provisions and refreshments of every kind to the road-side, and to have relays of carriages ready for the conveyance of the wearied soldiers. Such were the precautions which he took for accelerating his march; and when he had advanced some little distance from his camp, he briefly informed his soldiers of the real object of their expedition. He told them that there never was a design more seemingly audacious, and more really safe. He said he was leading them to a certain victory, for his colleague had an army large enough to balance the enemy already, so that THEIR swords would decisively turn the scale. The very rumour that a fresh consul and a fresh army had come up, when heard on the battle-field (and he would take care that they should not be heard of before they were seen and felt) would settle the campaign. They would have all the credit of the victory, and of having dealt the final decisive blow, He appealed to the enthusiastic reception which they already met with on their line of march as a proof and an omen of their good fortune. [Livy. lib. xxvii. c. 45.] And, indeed, their whole path was amidst the vows and prayers and praises of their countrymen. The entire population of the districts through which they passed, flocked to the road-side to see and bless the deliverers of their country. Food, drink, and refreshments of every kind were eagerly pressed on their acceptance. Each peasant thought a favour was conferred on him, if one of Nero's chosen band would accept aught at his hands. The soldiers caught the full spirit of their leader. Night and day they marched forwards, taking their hurried meals in the ranks and resting by relays in the waggons which the zeal of the country-people provided, and which followed in the rear of the column.

Meanwhile, at Rome, the news of Nero's expedition had caused the greatest excitement and alarm. All men felt the full audacity of the enterprise, but hesitated what epithet to apply to it. It was evident that Nero's conduct would be judged of by the event, that most unfair criterion, as the Roman historian truly terms it. ["Adparebat (quo nihil iniquius est) ex eventu famam habiturum."—LIVY, lib. xxvii. c. 44.] People reasoned on the perilous state in which Nero had left the rest of his army, without a general, and deprived of the core of its strength, in the vicinity of the terrible Hannibal. They speculated on how long it would take Hannibal to pursue and overtake Nero himself, and his expeditionary force. They talked over the former disasters of the war, and the fall of both the consuls of the last year. All these calamities had come on them while they had only one Carthaginian general and army to deal with in Italy. Now they had two Punic wars at one time. They had two Carthaginian armies; they had almost two Hannibals in Italy, Hasdrubal was sprung from the same father; trained up in the same hostility to Rome; equally practised in battle against its legions; and, if the comparative speed and success with which he had crossed the Alps was a fair test, he was even a better general than his brother. With fear for their interpreter of every rumour, they exaggerated the strength of their enemy's forces in every quarter, and criticised and distrusted their own.