§3.72.1ὁ δὲ Τεβέριος ἅμα τῷ συνιδεῖν ἐγγίζοντας τοὺς Νομαδικοὺς ἱππεῖς παραυτίκα μὲν αὐτὴν τὴν ἵππον ἐξαπέστελλε, προστάξας ἔχεσθαι καὶ συμπλέκεσθαι τοῖς πολεμίοις. §3.72.2ἑξῆς δὲ τούτοις ἐξέπεμπε τοὺς πεζακοντιστὰς εἰς ἑξακισχιλίους· ἐκίνει δὲ καὶ τὴν λοιπὴν δύναμιν ἐκ τοῦ χάρακος, ὡς ἐξ ἐπιφανείας κριθησομένων τῶν ὅλων, ἐπαιρόμενος τῷ τε πλήθει τῶν ἀνδρῶν καὶ τῷ γεγονότι τῇ προτεραίᾳ περὶ τοὺς ἱππεῖς εὐημερήματι. §3.72.3οὔσης δὲ τῆς ὥρας περὶ χειμερινὰς τροπὰς καὶ τῆς ἡμέρας νιφετώδους καὶ ψυχρᾶς διαφερόντως, τῶν δʼ ἀνδρῶν καὶ τῶν ἵππων σχεδὸν ὡς εἰπεῖν ἁπάντων ἀναρίστων ἐκπεπορευμένων, τὸ μὲν πρῶτον ὁρμῇ καὶ προθυμίᾳ περιῆν τὸ πλῆθος· §3.72.4ἐπιγενομένης δὲ τῆς τοῦ Τρεβία ποταμοῦ διαβάσεως, καὶ προσαναβεβηκότος τῷ ῥεύματι διὰ τὸν ἐν τῇ νυκτὶ γενόμενον ἐν τοῖς ὑπὲρ τὰ στρατόπεδα τόποις ὄμβρον, μόλις ἕως τῶν μασθῶν οἱ πεζοὶ βαπτιζόμενοι διέβαινον· §3.72.5ἐξ ὧν ἐκακοπάθει τὸ στρατόπεδον ὑπό τε τοῦ ψύχους καὶ τῆς ἐνδείας, ὡς ἂν ἤδη καὶ τῆς ἡμέρας προβαινούσης. §3.72.6οἱ δὲ Καρχηδόνιοι κατὰ σκηνὰς βεβρωκότες καὶ πεπωκότες καὶ τοὺς ἵππους ἡτοιμακότες ἠλείφοντο καὶ καθωπλίζοντο περὶ τὰ πυρὰ πάντες. §3.72.7Ἀννίβας δὲ τὸν καιρὸν ἐπιτηρῶν ἅμα τῷ συνιδεῖν διαβεβηκότας τοὺς Ῥωμαίους τὸν ποταμὸν προβαλόμενος ἐφεδρείαν τοὺς λογχοφόρους καὶ Βαλιαρεῖς, ὄντας εἰς ὀκτακισχιλίους, ἐξῆγε τὴν δύναμιν. §3.72.8καὶ προαγαγὼν ὡς ὀκτὼ στάδια πρὸ τῆς στρατοπεδείας τοὺς μὲν πεζοὺς ἐπὶ μίαν εὐθεῖαν παρενέβαλε, περὶ δισμυρίους ὄντας τὸν ἀριθμόν, Ἴβηρας καὶ Κελτοὺς καὶ Λίβυας, §3.72.9τοὺς δʼ ἱππεῖς διελὼν ἐφʼ ἑκάτερον παρέστησε τὸ κέρας, πλείους ὄντας μυρίων σὺν τοῖς παρὰ τῶν Κελτῶν συμμάχοις, τὰ δὲ θηρία μερίσας πρὸ τῶν κεράτων διʼ ἀμφοτέρων προεβάλετο. §3.72.10Τεβέριος δὲ κατὰ τὸν αὐτὸν καιρὸν τοὺς μὲν ἱππεῖς ἀνεκαλεῖτο, θεωρῶν οὐκ ἔχοντας ὅ,τι χρήσονται τοῖς ὑπεναντίοις διὰ τὸ τοὺς Νομάδας ἀποχωρεῖν μὲν εὐχερῶς καὶ σποράδην, ἐπικεῖσθαι δὲ πάλιν ἐκ μεταβολῆς τολμηρῶς καὶ θρασέως· τὸ γὰρ τῆς Νομαδικῆς μάχης ἴδιόν ἐστι τοῦτο· §3.72.11τοὺς δὲ πεζοὺς παρενέβαλε κατὰ τὰς εἰθισμένας παρʼ αὐτοῖς τάξεις, ὄντας τοὺς μὲν Ῥωμαίους εἰς μυρίους ἑξακισχιλίους, τοὺς δὲ συμμάχους εἰς δισμυρίους. §3.72.12τὸ γὰρ τέλειον στρατόπεδον παρʼ αὐτοῖς πρὸς τὰς ὁλοσχερεῖς ἐπιβολὰς ἐκ τοσούτων ἀνδρῶν ἐστιν, ὅταν ὁμοῦ τοὺς ὑπάτους ἑκατέρους οἱ καιροὶ συνάγωσιν. §3.72.13μετὰ δὲ ταῦτα τοὺς ἱππεῖς ἐφʼ ἑκάτερον θεὶς τὸ κέρας, ὄντας εἰς τετρακισχιλίους, ἐπῄει τοῖς ὑπεναντίοις σοβαρῶς, ἐν τάξει
As soon as Tiberius saw the Numidian horsemen approaching, he immediately dispatched his own cavalry, ordering them to keep close to the enemy and engage them. Next to these, he sent out the javelin-throwers to the number of about six thousand; and he also moved the rest of his force out of the camp, as if the whole issue were to be decided in open combat, being elated both by the numbers of his men and by the success that had occurred the previous day regarding the cavalry. It was the time of the winter solstice, and the day was exceptionally snowy and cold, and as the men and horses had set out almost all of them, so to speak, without breakfast, at first the multitude was full of ardor and enthusiasm. But when the crossing of the river Trebia followed, the stream having risen because of the rain that had fallen during the night in the regions above the camps, the infantry crossed with difficulty, immersed up to their breasts. In consequence of this, the army suffered severely from both cold and lack of food, as the day was already advancing. Meanwhile, the Carthaginians, having eaten and drunk in their tents and made their horses ready, were all anointing themselves and arming by the fires. Hannibal, watching for the right moment, as soon as he saw that the Romans had crossed the river, put forward as an advance guard the pikemen and Balearics, numbering about eight thousand, and led out his main force. Having advanced about eight stades in front of his camp, he drew up his infantry in a single straight line, numbering about twenty thousand, consisting of Iberians, Celts, and Libyans, while dividing the cavalry, he placed them on each wing, numbering more than ten thousand along with the Celtic allies, and having divided the elephants, he placed them in front of both wings. At the same time, Tiberius recalled his cavalry, seeing that they did not know how to deal with their opponents because the Numidians retreated easily and in scattered fashion, but turned back and attacked again with daring and boldness; for this is the characteristic of the Numidian mode of fighting. He drew up his infantry according to their usual formation, the Romans numbering about sixteen thousand, and the allies twenty thousand. For a complete army among them for major operations consists of this many men, whenever circumstances bring both consuls together. After this, having placed the cavalry on each wing, numbering about four thousand, he advanced imposingly against the enemy in order.