Sir Arthur Wellesley moved his army, upon the morning of the 4th of August, to the bridge of Arzobispo; the nature of the campaign was changed; Gallicia was delivered from the French; and the corps of Romana was now in peaceable possession of it, with the opportunity of augmenting its own numbers, and improving its discipline; the whole province was in a situation to dispose of its military means, and to create, in a short time, a powerful diversion, upon the rear of the enemy assembled upon the Tagus. The north of Spain was almost entirely in the same situation as Gallicia. The French had abandoned it, with very few exceptions, to concentrate their force against the British army; and Sir Arthur Wellesley conceived, that although he had been foiled in his attempt to rescue Madrid, yet he had restored independence to Gallicia, and in great part to the provinces adjoining it; which might, in the end, prove most advantageous to the cause of Spain. This opinion has since been proved to be correct; Gallicia retained its freedom, and the other northern provinces were never afterwards but in partial subjection to the enemy. As soon as Sir Arthur Wellesley had crossed the Tagus at Arzobispo, he detached Major General Crawford, with the light division, to occupy, with as much rapidity as possible, the pass at Almaraz; where it was to be feared the enemy, whose advanced guard had seen the passage of the allies at Arzobispo, might push a force across the Tagus, and endeavour to intercept the British army on its march upon Deleytosa. Major General Crawford arrived, however, in time to prevent that operation; the movement of the army was undisturbed; General Cuesta remained at Arzobispo; and the British moved to Deleytosa. The Spaniards were, however, attacked a few days after by the French at Arzobispo; their advanced guard was driven from the bridge; and their whole army retired to Deleytosa, whilst Sir Arthur Wellesley moved to Jaraseco.