Not for another twelvemonth, however, was a Gothic encampment again seen before the walls of Rome (545); but in the meantime Totila had elaborated his preparations so as to render a siege effective to the utmost. By capturing the fortress of Tibur, situated on the Anio, twenty miles to the north-east of the capital, he was enabled to command the fluviatile navigation and to prevent supplies reaching Rome from the fields of Tuscany. On the other hand, by posting numerous war-galleys among the islands off the coast, in the track of the corn-ships which sailed from Sicily, he cut off all possibility of the Roman granaries being replenished by sea-borne provisions. Bessas was now governor of Rome, but the garrison under his command amounted to only three thousand, and their ardour was soon damped by the result of the first sally against the enemy. A band of Goths approached the gates and drew upon themselves the attack of two eager lieutenants, who chased them in simulated flight until they fell into a skilfully-contrived ambush, from which few of them returned. After this mishap, which was incurred against the advice of Bessas, no more sallies were made by the besieged.
Such was now the prosperous position of Totila's affairs. Yet a twelvemonth had already elapsed since Belisarius had received a commission from Justinian to go to the relief of Italy. But he dismissed him to this command without resources from the state, telling him coldly that out of his own great wealth he was to provide for the expenses of the expedition. The Constable, for such he is now to be called, travelled slowly through Illyricum and arrived at Salona with four thousand recruits, whom while on his way he had induced with difficulty to join his standard. He now embarked for Pola in Istria, from whence after a short delay
