They knew at this time little of the enemy, not even who commanded their united force, whether Marshal Jourdan or General Gazan, the Intruder’s command being of course merely nominal; it was thought that their intention was to have given battle upon the main road, near Briviesca; but this alone was certain, that their plans had been disconcerted by Lord Wellington’s movements and sudden advance, and that they were in that state of irresolution which prepares even the best soldiers for defeat. On the 16th and 17th they assembled a considerable force near Espejo, composed of troops which had been employed against Longa and Mina, and of others detached from the main body of their army. They had also a division of infantry, with some cavalry, at Frias, to observe the movements of the allies after the passage of the Ebro. These detachments, in all about 16,000 men, moved on the 18th, those from Frias upon S. Millan, and those from Espejo upon Osma. The light division, under Major-General Alten, drove them from S. Millan, and cut off the brigade of their rear-guard, of whom it killed and wounded many, took 300 prisoners, with a considerable quantity of baggage, and dispersed the rest among the mountains, ... from thence to be brought in by the peasants and the guerrillas. Sir Thomas Graham arrived at Osma at the same time with the enemy’s corps; they were considerably superior in numbers, nevertheless they retired as soon as an intention was shown of attacking them: presently they returned briskly, as if to become assailants in their turn, but their reception was not such as to encourage them, and they once more retired towards Espejo, and being followed thither, withdrew to the heights. The enemy’s head-quarters were that day at Pancorvo. During the night they moved from thence towards Vittoria; and on the following day their rear-guard was found strongly posted, having its right covered by the village of Subijana, and its left upon the heights in front of ♦JUNE 19.♦ Pobes. The light division attacked them in flank on the right, Sir Lowry Cole with the 4th in front, and they were driven back upon their main force, of which a view was then obtained, but no correct judgment could be formed of its numbers, because they were in part concealed by the mountains, and a thick rain was falling during the whole day. On that night they took up a position in front of Vittoria. ♦VITTORIA.♦