The Duke of Dalmatia, however, paused at the bridge of Arzobispo before committing himself to a second advance against the allies. He was averse to making an isolated attack upon the admirable position now occupied by the Estremaduran army, and wished to combine it with a simultaneous assault upon the British. It will be remembered that he had detached Ney’s corps from the rear of his line of march, and ordered it to attempt the passage of the Tagus at Almaraz, by the ford which he knew to exist close to the ruined bridge. He also wrote to Victor to desire him to push forward the two infantry divisions which had crossed the river at Talavera, and to direct them on Mohedas and Alia, so as to turn Cuesta’s flank by a long circuitous march among the rugged summits of the Sierra de Guadalupe.
Neither of these subsidiary movements was carried out. One division of Ney’s corps, and Fournier’s brigade of dragoons reached Almaraz on Aug. 8: the other division and the light cavalry had followed the 2nd Corps so closely that it had passed Navalmoral on its way eastward, and had to make a long counter-march. It was not till the ninth or tenth therefore that the Duke of Elchingen would have been in a position to attempt the passage of the Tagus. Craufurd’s detachment had been established at Mirabete, behind the broken bridge, since Aug. 6, and two days later the main body of the British army had reached Deleytosa, where it was within a few hours’ march of the vanguard, and perfectly ready to support it. If Ney had endeavoured to pass the Tagus on the ninth or tenth with his 12,500 men, it is clear that the head of his column must have been destroyed, for the ford was narrow and difficult, and indeed barely passable for infantry even in the middle of August[723]. But the Marshal did not even attempt the passage, for the simple reason that his intelligence officers failed to discover the ford, and reported to him that none existed. He sent word to Soult that the scheme was impracticable, and drawing back from the water’s edge concentrated his whole corps at Navalmoral [Aug. 9].
Victor, at the other end of the French line, showed no desire to adventure his infantry among the defiles of the Sierra de Guadalupe, without guns or cavalry, and refused to move up into the mountains in order to turn Cuesta’s right flank. Thus the whole plan concerted by the Duke of Dalmatia for a general attack on the allies came to an ignominious conclusion.
It would appear, indeed, that his chance of inflicting a serious blow on the enemy had passed away long ere he brought the 2nd and 5th Corps down to the bridge of Arzobispo. It was on the fifth, when Mortier refused to close with Cuesta and allowed him to withdraw across the Tagus, that Soult had lost his best opportunity. On that day the Spaniards were still on the wrong side of the river, and the British vanguard had not yet reached the broken bridge of Almaraz. If Mortier had engaged the army of Cuesta, and Ney had found and attacked the ford at Almaraz before Craufurd’s arrival, the position of the allies would have been forlorn indeed. But on the fifth Soult had not yet discovered the real position of affairs; and the head of Ney’s corps was only just debouching from Plasencia, two long marches from Almaraz. In short ‘the fog of war,’ as a modern writer has happily called it, was still lying thick about the combatants, and Soult’s best chance was gone before he was even aware of it.
On August 9, matters looked far less promising, even though the bridge of Arzobispo had been won. Since Ney sent word that he could not cross at Almaraz, while Victor declined to commit himself to any schemes for an advance into the eastern mountains, Soult saw that he must construct another scheme of operations. His own preference was for a march into Portugal by way of Coria and Castello Branco. Such an attack upon Wellesley’s base, made by the 50,000 men of the 2nd, 5th, and 6th Corps, would compel the British to abandon Almaraz, to give up their connexion with Cuesta, and to march in haste by Truxillo, Caceres, and Portalegre on Abrantes, in order to cover Lisbon. It was even possible that, if the invading army made great haste, it might reach Abrantes before the British: in that case Wellesley would be forced to keep to the southern bank of the Tagus and cross it at Santarem, comparatively close to the capital. Thus all Central Portugal might be won without a battle, and Lisbon itself might fall ere the campaign ended, since the 20,000 men of the British general, even when aided by the local levies, could not (as Soult supposed) hold back three French corps d’armée[724]. There was another alternative possible—to march not on Lisbon but on Ciudad Rodrigo and Almeida, and to invade Portugal by the northern road. But this plan would take a longer time to execute, and promised less decisive results.
But even before the combat of Arzobispo had taken place, Joseph and Jourdan had determined that they would not permit Soult to carry out any schemes of advance against Portugal. They could show very good grounds for their decision. If the Duke of Dalmatia marched off to attack Lisbon, he would leave the 1st and 4th Corps and the King’s reserve,—less than 50,000 men in all, after the losses of Talavera,—opposed to Cuesta, Wellesley, and Venegas, who between them would have at least 75,000[725]. If the British army should refuse to be drawn away towards Portugal, and should recross the Tagus at Almaraz with Cuesta in its wake, the situation would be deplorable. Victor would be exposed, just as he had been on July 22 and 23, to a joint attack from the two armies. And on this occasion Sebastiani and the King would not be able to bring him help, for they were now closely engaged with Venegas near Aranjuez. If they moved away from the front of the army of La Mancha, Madrid would be lost in two days. If they did not so move, Wellesley and Cuesta might crush Victor, or drive him away on some eccentric line of retreat which would uncover the capital. Jourdan therefore, writing in the name of Joseph, had informed Soult in a dispatch dated Aug. 8, that it was impossible to permit him to march on Portugal, as his departure would uncover Madrid and probably bring about a fatal disaster. He also urged that the exhaustion of the troops rendered a halt necessary, and that it would be impossible to feed them, if they advanced into the stony wilderness on the borders of Portugal before they had collected magazines. For the present the King would be contented to keep the allies in check, without seeking to attack or disperse them, until the weather began to grow cooler and the troops had rested from their fatigues.
As if intending to put it out of Soult’s power to undertake his projected expedition into Portugal, Jourdan and Joseph now proceeded to deprive him of the control of one of his three army corps. They authorized Ney to recross the mountains and to return to Salamanca, in order to protect the plains of Leon from the incursions of the Spaniards of Galicia. Deprived of such a large section of his army, Soult would be unable to march against Abrantes, as he so much desired to do. There were good military reasons, too, for sending off Ney in this direction: Kellermann kept reporting that La Romana was on the move, and that unless promptly succoured he should find himself obliged to abandon Benavente and Zamora and to fall back on Valladolid. The Spaniards from Ciudad Rodrigo had already taken the offensive, and Del Parque’s advanced guard had even seized Salamanca.
Ney accepted with alacrity the chance of withdrawing himself from the immediate control of his old enemy Soult; he received his permission to return to Leon on Aug. 9: on the tenth his whole corps was on the move, and on the eleventh he had retired to Plasencia. On the following day he plunged into the passes and made for Salamanca with all possible speed[726].