But even a capable officer, enjoying undisputed control over all the Catalan forces, could have done little during the few days that the siege of Tortosa lasted. The covering army under Macdonald was too strong to be meddled with by the two divisions based on Tarragona. On the first day of the siege (as we have already seen) he marched from Mora with his 15,000 men: on the 18th he came up to Perello, where meet the two roads from Tortosa to the north, thus absolutely barring any attempt to approach the place. After some days he found it impossible to feed his troops in this rugged spot, and divided them, placing one division of 6,000 men under Frère on the Tarragona-Amposta road, in the direct rear of the besieging army, while with the other two he retired to Ginestar on the Ebro, twenty miles due north of Tortosa, from whence he could reinforce Suchet in a single march if the Spaniards made any movement. But no one came against him: the existence of his army in this quarter sufficed to paralyse the modest force then lying in the neighbourhood of Tarragona. Campoverde took one division to the Fort of Balaguer, covering the coast road, from which he observed Frère at a distance; while Yranzo with the other occupied Macdonald’s old head quarters at Momblanch. But they knew that they were too weak to risk an advance from these points, and while they remained quiet Tortosa fell. The only diversions carried out during the siege were in corners of Catalonia, where even a considerable success would have had no effect on the course of affairs on the lower Ebro. A French foraging party of 650 cavalry was cut up at Tarrega, near Lerida, on January 1, by a detachment from Momblanch. On December 25, a landing party from the British frigates on the Catalan station surprised the post of Palamos, and destroyed there two gunboats and eight transports which were coasting down from Cette towards Barcelona. But remaining on shore too long they were surprised by a French flying column, and driven back to their boats with a loss of over 200 men, including Captain Fane of the _Cambrian_, the officer in command.