The following year the Romans were obliged to convert the siege into a blockade, in consequence of the Carthaginians having succeeded in destroying all their works. One of the consuls was P. Claudius Pulcher, an obstinate and ambitious man, who, contrary to the advice of those who were better skilled in maritime affairs, and better acquainted with the Carthaginians than he was, determined to surprize Drepanon, where the Carthaginian admiral was posted. Claudius had under his command a fine and formidable fleet of 120 galleys; with these he sailed from before Lilibaeum in the night time, having taken on board a great number of the best troops employed in the blockade of that place. At break of day, Asdrubal, the Carthaginian admiral, was surprized to perceive the hostile fleet approaching Drepanon: he formed his plan immediately, preferring an immediate engagement to the certainty of being shut up in the harbour. Accordingly, with ninety ships, he sailed out, and drew them up behind some rocks which lay near the harbour. As the Romans had not perceived him come out, they continued to sail on without forming themselves into line of battle, when as they were about to enter the harbour, the Carthaginians attacked them, with such celerity and vigour, that, being taken quite unprepared, they were thrown into confusion. Claudius might still have saved his fleet by immediate flight, but this he absolutely refused to do, notwithstanding the strong and urgent remonstrances of his officers.