The garrison of Rosas, when St. Cyr undertook its siege, was commanded by Colonel Peter O’Daly, an officer of the Ultonia, who had distinguished himself at Gerona; it was composed of a skeleton battalion (150 men) of the governor’s own Irish corps, of half the light infantry regiment 2nd of Barcelona, of a company of Wimpffen’s Swiss regiment, and 120 gunners. These were regulars: of new levies there were the two _miquelete tercios_ of Lerida and Igualada, with some companies of those of Berga and Figueras. The whole force was exactly 3,000 strong. It would be wrong to omit the mention of the British succours which took part in the defence. There lay in the harbour the _Excellent_, 74, and two bomb-vessels: when the _Excellent_ departed on November 21 she was replaced by the _Fame_, another 74-gun ship, and during the last days of the siege Lord Cochrane in his well-known frigate the _Impérieuse_ was also present. It is well to remember their exact force, for the French narrators of the leaguer of Rosas are prone to call them ‘the British squadron,’ a term which seems rather too magnificent to apply to a group of vessels never numbering more than one line-of-battle ship, one frigate, and two bomb-vessels. St. Cyr moved forward on November 5, with the four divisions of Souham, Pino, Reille, and Chabot, which (as we have seen) amounted in all to about 23,000 men. He had resolved to use Pino and Reille--some 12,000 men--for the actual siege, and Souham and Chabot for the covering work. Accordingly the weak division of the last-named officer was left to watch the ground at the foot of the passes, in the direction of Figueras and La Junquera, while Souham took up the line of the river Fluvia, which lay across the path of any relieving force that might come from the direction of Gerona. St. Cyr remained with the covering army, and gave the conduct of the siege to Reille, perhaps because he had already made one attack on the town in August. On November 6 Reille marched down to the sea, driving before him the Spanish outlying pickets, and the peasantry of the suburban villages, who took refuge with their cattle in Rosas. On the seventh the investment began, Reille’s own division taking its position on the marshy ground opposite the town, while Pino encamped more to the left, upon the heights that face the fort of the Trinity. The head quarters were established at the village of Palau. A battalion of the 2nd Italian light infantry was placed far back, to the north-east, to keep off the _somatenes_ of the coast villages about Llanza and Selva de Mar from interfering in the siege.