During this time, Cæsar was approaching the country of the Segni and Condrusi,[454] who came to implore him not to confound in the same cause all the Germans beyond the Rhine, and protested their neutrality. The fact having been satisfactorily proved, Cæsar assured them that, if they would deliver up to him the Eburones who had sought refuge among them, their territory should be respected. Having arrived at Visé, on the Meuse, where a ford exists from time immemorial, he divided his troops into three bodies, and sent the baggage of all the legions to Aduatuca (Tongres): it was the place which had witnessed the recent disaster of Sabinus. He gave preference to this position, because the retrenchments of the preceding year, still standing, would spare the troops much labour. He left, as a guard for the baggage, the 14th legion, and placed it, with 200 cavalry, under the command of Quintus Cicero.

Of the nine legions remaining with Cæsar, three were sent with T. Labienus to the north towards the ocean, into the part of the country of the Eburones which touched on that of the Menapii; three to the south with C. Trebonius, to ravage the districts neighbouring on the Aduatuci (towards the south-west, between the Meuse and the Demer); lastly, Cæsar, at the head of the three others, advanced towards the Scheldt, the waters of which, at this period, mingled with those of the Meuse.[455] (See Plate 14.) It was his intention to gain the extremity of the Ardennes (between Brussels and Antwerp), whither it was said that Ambiorix had retired with a few horsemen. He announced, on his departure, that he should return to Aduatuca on the seventh day, the period for the distribution of provisions to the legion which was left at that place in charge of the baggage. Labienus and Trebonius were, if they found it possible, to return at the same period, in order to concert again on the measures to be taken after they had made themselves acquainted with the designs of the enemy.

The Eburones had neither regular force, nor garrison, nor oppidum. They formed a scattered multitude, always in ambush, attacking the soldiers when isolated, and obliging the Romans to carry on a harassing war, without any decisive result; for the nature of the country, covered with thick forests, and intersected by marshes, protected the barbarians, who could only be reached by small detachments. In the midst of these difficulties, Cæsar preferred doing less injury to the enemy, and sparing the lives of his own soldiers, by having recourse to the Gauls. He accordingly sent messages to invite the neighbouring peoples to come and ravage the territory of the Eburones, and assist him in exterminating a race guilty of having slaughtered his soldiers. At his call, numerous hordes rushed from all sides, and the entire territory of the Eburones was soon given up to pillage.[456]

The Sicambri attack Aduatuca.

VII. Meanwhile, the seventh day, the period fixed for Cæsar’s return, approached. Chance, so common in war, brought about a remarkable incident. The enemy, scattered, and struck with terror, could no longer inspire the least fear. But rumour having spread beyond the Rhine, among the Germans, that all peoples were invited to ravage the country of the Eburones, the Sicambri, neighbours to the river, who had, as we have seen, received the Usipetes and Tencteri after their defeat, collect 2,000 cavalry; they pass the Rhine on rafts and boats, thirty miles below where Cæsar had built his bridge and left a guard (forty-five kilomètres below Bonn.)[457] They invade the territory of the Eburones, pick up a crowd of fugitives, and seize upon a great number of cattle. The attraction of booty draws them on farther and farther; bred in the midst of war and plundering, nothing stops them—neither marshes nor woods. On their arrival at some distance from the Meuse, they learn from prisoners the absence of Cæsar and the distance of the army, and that in three hours they can reach Aduatuca, where the riches of the Romans are deposited. They are made to believe that this fortress is defended by a garrison too weak to line the walls or venture to issue from the retrenchments. Trusting in this information, the Germans hide their booty, and, guided by a prisoner, march against Aduatuca, crossing the Meuse at Maestricht.

Hitherto, Cicero had scrupulously executed Cæsar’s order, and retained the troops in the camp without even permitting a single valet to quit it; but on the seventh day, reckoning no longer on the return of the general at the term fixed, he yielded to the complaints of the soldiers, who blamed his obstinacy in keeping them shut up as though they were besieged. He believed, moreover, that the nine legions, and the numerous cavalry which scoured the country, permitted him to venture without danger to a distance of three miles from his camp, especially after the dispersion of the enemy’s forces; he therefore sent five cohorts to cut wheat in the nearest fields, situated to the north of Aduatuca, and separated from the camp only by a hill. With them went, under the same ensign, 300 men of different legions left sick, but then restored, and a multitude of valets, taking with them a great number of beasts of burden, which were in the camp.

Suddenly the German cavalry arrive; their march had been concealed by the woods. Without halting, they rush toward the Decuman gate, and attempt to enter the camp. (See Plate 18.) The attack is so sudden, that the merchants established under the vallum have not time to enter. The soldiers, taken by surprise, are in confusion; the cohort on guard struggles to prevent the enemy from entering the gate. The Sicambri spread themselves round the camp, to discover another passage; but, fortunately, the nature of the locality and the retrenchments render access impossible everywhere but at the gates. They attempt to force an entry there, and are prevented with difficulty. The alarm and disorder are at their height. The soldiers are uncertain where to direct their steps, or where to assemble; some pretend that the camp is taken, others that the army and Cæsar have perished. A feeling of superstitious anxiety recalls to their minds the disaster of Sabinus and Cotta, slain at the same place. At the sight of such a general consternation, the barbarians are confirmed in their opinion that the Romans are too few to resist; they strive to force an entrance, and urge one another not to let so rich a prey escape.

Among the sick left in the camp was the primipilus P. Sextius Baculus, who had signalised himself in the preceding combats. For five days he had taken no food. Uneasy for the safety of all, as well as his own, he leaves his tent without arms, sees before him the enemy and the danger, snatches a sword from the first man he meets, and takes his post at a gate. The centurions of the cohort on guard follow him, and all together sustain the attack for a few instants. Baculus, grievously wounded, faints. He is passed from hand to hand, and only saved with difficulty. This incident gives the others time to recover their courage. They remain on the rampart, and present at least some appearance of defence.

At this moment the soldiers who had gone out to reap were on their way back to the camp; they are struck with the cries they hear; the cavalry press forward, perceive the imminence of the danger, and see, with terror, that it is no longer possible to obtain refuge behind the retrenchments. The newly-levied soldiers, inexperienced in war, interrogate the tribune and centurions with their looks, and wait their orders. There is no one so brave as not to be agitated by so unexpected an event. The Sicambri, perceiving the ensigns at a distance, believe at first that the legions were returning, and cease from the attack; but soon, filled with contempt for such a handful of men, they rush upon them on all sides.

The valets take refuge on a neighbouring hill, that on which now stands the village of Berg. Driven from this post, they rush back into the midst of the ensigns and manipuli, and increase the fear of the already intimidated men. Among the soldiers, some propose to form in wedge, in order to open themselves a way to the camp they see so near them: the loss of a small number will be the safety of all. Others advise to remain firm on the heights, and run the same chance together. This latter opinion is not that of the old soldiers, united under the same ensign. Led by C. Trebonius, a Roman knight, they fight their way through the enemy, and re-enter the camp without the loss of a single man. Under protection of this bold movement, the valets and cavalry succeed in following them. As to the young soldiers who had posted themselves on the heights, they were not able, in their inexperience, either to maintain their resolution to defend themselves in their position, or to imitate the successful energy of the veterans; they engaged on disadvantageous ground in an attempt to regain the camp, and their destruction would have been certain but for the devotedness of the centurions. Some had been promoted from the lowest ranks of the army to this grade, in reward for their courage; and for a moment they intimidated the enemy, by sacrificing their lives in order to justify their renown. This heroic act, contrary to all expectation, enabled three cohorts to re-enter the camp; the two others perished.