Nevertheless, the work of the war was not easy; here, as everywhere, the renewed overthrow of the subjects was more laborious than the subjugation itself. Never in the Augustan period was such a body of troops ever united under the same command; already in the first year of the war the army of Tiberius consisted of ten legions along with the corresponding auxiliary forces, and in addition numerous veterans who had again joined of their own accord and other volunteers, together about 120,000 men; later he had fifteen legions united under his banners.[15] In the first campaign (6 A.D.) the contest was waged with very varying fortune; the large places, like Siscia and Sirmium, were successfully protected against the insurgents, but the Dalmatian Bato fought as obstinately and in part successfully against the governor of Pannonia, Marcus Valerius Messalla, the orator's son, as his Pannonian namesake against Aulus Caecina governor of Moesia. The petty warfare above all gave much trouble to the Roman troops. Nor did the following year (7), in which along with Tiberius his nephew the young Germanicus appeared on the scene of war, put an end to the ceaseless conflicts. It was not till the third campaign (8) that the Romans succeeded in subduing in the first instance the Pannonians, chiefly, as it would seem, through the circumstance that their leader, gained over by the Romans, induced his troops all and sundry to lay down their arms at the river Bathinus, and surrendered his colleague in the supreme command, Pinnes, to the Romans, for which he was recognised by them as prince of the Breuci. Punishment indeed soon befell the traitor; his Dalmatian namesake caught him and had him executed, and once more the revolt blazed up among the Breuci; but it was speedily extinguished again, and the Dalmatian was confined to the defence of his own home. There Germanicus and other leaders of division had in this, as in the following year (9), to sustain vehement conflicts in the several cantons; in the latter year the Pirustae (on the borders of Epirus) and the canton to which the leader himself belonged, the Daesitiatae, were subdued, one bravely defended stronghold being reduced after another. Once more in the course of the summer Tiberius himself took the field, and set in motion all his fighting force against the remains of the insurrection. Even Bato, shut up by the Roman army in the strong Andetrium (Much, above Salonae), his last place of refuge, gave up the cause as lost. He left the town, when he could not induce the desperadoes to submit, and yielded himself to the victor, with whom he found honourable treatment; he was relegated as a political prisoner to Ravenna, where he died. Without their leader the troops still for a time continued the vain struggle, till the Romans captured the fort by assault--it is probably this day, the 3d August, that is recorded in the Roman calendar as the anniversary of the victory achieved by Tiberius in Illyricum.