In Illyria also, while Caesar was in Egypt, incidents of a very grave nature had occurred. The Dalmatian coast had been for centuries a sore blemish on the Roman rule, and its inhabitants had been at open feud with Caesar since the conflicts around Dyrrhachium; while the interior also since the time of the Thessalian war, swarmed with dispersed Pompeians. Quintus Cornificius had however, with the legions that followed him from Italy, kept both the natives and the refugees in check and had at the same time sufficiently met the difficult task of provisioning the troops in these rugged districts. Even when the able Marcus Octavius, the victor of Curicta[45], appeared with a part of the Pompeian fleet in these waters to wage war there against Caesar by sea and land, Cornificius not only knew how to maintain himself, resting for support on the ships and the harbour of the Iadestini (Zara), but in his turn also sustained several successful engagements at sea with the fleet of his antagonist. But when the new governor of Illyria, the Aulus Gabinius recalled by Caesar from exile[46], arrived by the landward route in Illyria in the winter of 706-707 with fifteen cohorts and 3000 horse, the system of warfare changed. Instead of confining himself like his predecessor to war on a small scale, the bold active man undertook at once, in spite of the inclement season, an expedition with his whole force to the mountains. But the unfavourable weather, the difficulty of providing supplies, and the brave resistance of the Dalmatians, swept away the army; Gabinius had to commence his retreat, was attacked in the course of it and disgracefully defeated by the Dalmatians, and with the feeble remains of his fine army had difficulty in reaching Salonae, where he soon afterwards died.

Most of the Illyrian coast towns thereupon surrendered to the fleet of Octavius; those that adhered to Caesar, such as Salonae and Epidaurus (Ragusa vecchia), were so hard pressed by the fleet at sea and by the barbarians on land, that the surrender and capitulation of the remains of the army enclosed in Salonae seemed not far distant. Then the commandant of the depot at Brundisium, the energetic Publius Vatinius, in the absence of ships of war caused common boats to be provided with beaks and manned with the soldiers dismissed from the hospitals, and with this extemporized war-fleet gave battle to the far superior fleet of Octavius at the island of Tauris (Torcola between Lesina and Curzola) - a battle in which, as in so many cases, the bravery of the leader and of the marines compensated for the deficiencies of the vessels, and the Caesarians achieved a brilliant victory. Marcus Octavius left these waters and proceeded to Africa (spring of 707); the Dalmatians no doubt continued their resistance for years with great obstinacy, but it was nothing beyond a local mountain-warfare. When Caesar returned from Egypt, his resolute adjutant had already got rid of the danger that was imminent in Illyria.

All the more serious was the position of things in Africa, where the constitutional party had from the outset of the civil war ruled absolutely and had continually augmented their power. Down to the battle of Pharsalus king Juba had, properly speaking, borne rule there; he had vanquished Curio, and his flying horsemen and his numberless archers were the main strength of the army; the Pompeian governor Varus played by his side so subordinate a part that he even had to deliver those soldiers of Curio, who had surrendered to him, over to the king, and had to look on while they were executed or carried away into the interior of Numidia. After the battle of Pharsalus a change took place. With the exception of Pompeius himself, no man of note among the defeated party thought of flight to the Parthians. As little did they attempt to hold the sea with their united resources; the warfare waged by Marcus Octavius in the Illyrian waters was isolated, and was without permanent success.

The great majority of the republicans as of the Pompeians betook themselves to Africa, where alone an honourable and constitutional warfare might still be waged against the usurper. There the fragments of the army scattered at Pharsalus, the troops that had garrisoned Dyrrhachium, Corcyra, and the Peloponnesus, the remains of the Illyrian fleet, gradually congregated; there the second commander-in-chief Metellus Scipio, the two sons of Pompeius, Gnaeus and Sextus, the political leader of the republicans Marcus Cato, the able officers Labienus, Afranius, Petreius, Octavius and others met. If the resources of the emigrants had diminished, their fanaticism had, if possible, even increased. Not only did they continue to murder their prisoners and even the officers of Caesar under flag of truce, but king Juba, in whom the exasperation of the partisan mingled with the fury of the half-barbarous African, laid down the maxim that in every community suspected of sympathizing with the enemy the burgesses ought to be extirpated and the town burnt down, and even practically carried out this theory against some townships, such as the unfortunate Vaga near Hadrumetum. In fact it was solely owing to the energetic intervention of Cato that the capital of the province itself the flourishing Utica - which, just like Carthage formerly, had been long regarded with a jealous eye by the Numidian kings - did not experience the same treatment from Juba, and that measures of precaution merely were taken against its citizens, who certainly were not unjustly accused of leaning towards Caesar.

As neither Caesar himself nor any of his lieutenants undertook the smallest movement against Africa, the coalition had full time to acquire political and military reorganization there. First of all, it was necessary to fill up anew the place of commander-in-chief vacant by the death of Pompeius. King Juba was not disinclined still to maintain the position which he had held in Africa up to the battle of Pharsalus; indeed he bore himself no longer as a client of the Romans but as an equal ally or even as a protector, and took it upon him, for example, to coin Roman silver money with his name and device; nay, he even raised a claim to be the sole wearer of purple in the camp, and suggested to the Roman commanders that they should lay aside their purple mantle of office.

Further Metellus Scipio demanded the supreme command for himself, because Pompeius had recognized him in the Thessalian campaign as on a footing of equality, more from the consideration that he was his son-in-law than on military grounds. The like demand was raised by Varus as the governor - self-nominated, it is true - of Africa, seeing that the war was to be waged in his province. Lastly the army desired for its leader the propraetor Marcus Cato. Obviously it was right. Cato was the only man who possessed the requisite devotedness, energy, and authority for the difficult office; if he was no military man, it was infinitely better to appoint as commander-in-chief a non-military man who understood how to listen to reason and make his subordinates act, than an officer of untried capacity like Varus, or even one of tried incapacity like Metellus Scipio. But the decision fell at length on this same Scipio, and it was Cato himself who mainly determined that decision.

He did so, not because he felt himself unequal to such a task, or because his vanity found its account rather in declining than in accepting; still less because he loved or respected Scipio, with whom he on the contrary was personally at variance, and who with his notorious inefficiency had attained a certain importance merely in virtue of his position as father-in-law to Pompeius; but simply and solely because his obstinate legal formalism chose rather to let the republic go to ruin in due course of law than to save it in an irregular way. When after the battle of Pharsalus he met with Marcus Cicero at Corcyra, he had offered to hand over the command in Corcyra to the latter - who was still from the time of his Cilician administration invested with the rank of general - as the officer of higher standing according to the letter of the law, and by this readiness had driven the unfortunate advocate, who now cursed a thousand times his laurels from the Arnanus, almost to despair; but he had at the same time astonished all men of any tolerable discernment. The same principles were applied now, when something more was at stake; Cato weighed the question to whom the place of commander-in-chief belonged, as if the matter had reference to a field at Tusculum, and adjudged it to Scipio.