After hastily concentrating and brigading his army at Lugo, Blake led them to the edge of the mountains which divide Galicia from the plains of Leon. It was his original intention to stand at bay on the hills, and force the French to attack him. With this object he occupied the passes of Manzanal, Fuencebadon, and Puebla de Sanabria, the only places where roads of importance penetrate into the Galician uplands [June 23]. His whole field force, distributed into four divisions and a ‘vanguard brigade’ of light troops, amounted to some 25,000 men fit for the field: in addition, 8,000 or 10,000 new levies were being organized behind him, but he refused—with great wisdom—to bring them to the front during his first movements.
On Blake’s left flank were other Spanish troops: the Junta of the Asturias had raised some 15,000 men: but these—unlike the Galician army—were utterly raw and untrained. Of old troops there was but one single militia battalion among them. The Junta had dispersed them in small bodies all along the eastern and southern side of the province, arraying them to cover not only the high road from Madrid and Leon to Oviedo, but every impracticable mule-path that crosses the Cantabrian Mountains. By this unwise arrangement the Asturian army was weak at every point: it was impossible to concentrate more than 5,000 men for the defence of any part of the long and narrow province. The fact was that the Junta looked solely to the defence of its own land, and had no conception that the protection of the Asturias should be treated as only a section of the great problem of the protection of the whole of Northern Spain.
While the Galicians and the Asturians were taking up this purely defensive attitude, they had forgotten to reckon with one factor in their neighbourhood. Right in front of them lay the old Captain-General of Castile, with the wrecks of the army that had been so signally routed at Cabezon. He had retired to Benavente on the Esla, and there had halted, finding that he was not pursued by Lasalle. Here he reorganized his scattered Castilian levies into three battalions, and raised three more in the province of Leon. He had still 300 or 400 regular cavalry, but not a single gun. Quite undismayed by his late defeat, he persisted in wishing to fight in the plain, and began to send urgent messages both to Blake and to the Juntas of Asturias and Galicia, begging them to send down their armies from the hills, and aid him in making a dash at Valladolid, with the object of cutting off Bessières’ communications with Madrid, and so disarranging the whole system of Napoleon’s plan for the conquest of Spain.
The Asturians, partly from a well-justified disbelief in Cuesta’s ability, partly from a selfish desire to retain all their troops for the defence of their own province, refused to stir. They sent the Captain-General a modest reinforcement, two battalions of the newly raised regiment of Covadonga, but refused any more aid. Instead, they suggested that Cuesta should fall back on Leon and the southern slope of the Asturian hills, so as to threaten from thence any advance of the French into the plains of Leon.
But the Galician Junta showed themselves less unyielding. Despite of the remonstrances of Blake, who was set on maintaining the defensive, and holding the passes above Astorga, they consented to allow their army to move down into the plain of Old Castile and to join Cuesta. After some fruitless remonstrances Blake moved forward with the bulk of his host, leaving behind him his second division to hold the passes, while with the other three and his vanguard brigade he marched on Benavente [July 5].
On July 10 the armies of Galicia and Castile met at Villalpando, and a brisk quarrel at once broke out between their commanders. Cuesta was for attacking the French at once: Blake pointed out that for an army with no more than thirty guns and 500 or 600 cavalry to offer battle in the plains was sheer madness. The Irish general had the larger and more effective army, but Cuesta was thirteen years his senior as lieutenant-general, and insisted on assuming command of the combined host in accordance with the normal rules of military precedence. After some fruitless resistance Blake yielded, and the whole Spanish army moved forward on Valladolid: all that Cuesta would grant on the side of caution was that the third Galician division, 5,000 strong, should be left as a reserve at Benavente. Even this was a mistake: if the two generals were to fight at all, they should have put every available man in line, and have endeavoured at all costs to induce the Asturians also to co-operate with them. They might have had in all for the oncoming battle 40,000 men, instead of 22,000, if the outlying troops had been collected.
A blow from the north-west was precisely what Napoleon at Bayonne and Savary at Madrid had been expecting for some weeks. Both of them were perfectly conscious that any check inflicted on Bessières in Old Castile would wreck the whole plan of invasion. So much of the marshal’s corps d’armée had been distracted towards Saragossa, that it was clearly necessary to reinforce him. From Madrid Savary sent up half of the troops of the Imperial Guard which had hitherto been in the capital—three battalions of fusiliers (first regiment) and three squadrons of cavalry[133]. Napoleon afterwards blamed him severely for not having sent more, saying that from the mass of troops in and about Madrid he might have spared another complete division—that of Gobert, the second division of Moncey’s corps. Without its aid the Emperor half-expected that Bessières might be checked, if the Galicians came down in full force[134]. He himself sent up from Bayonne nearly all the troops which were at that moment under his hand, ten veteran battalions just arrived from Germany, forming the division of General Mouton.
The reinforcements being hurried on to Bessières by forced marches, that general found himself on July 9 at the head of a force with which he thought that he might venture to attack Blake and Cuesta. If they had brought with them all their troops, and had called in the Asturians, it is probable that the marshal would have found himself too weak to face them: fortunately for him he had only five-ninths of the army of Galicia and Cuesta’s miserable levies in front of him. His own fighting force was formed of odd fragments of all the divisions which formed his corps d’armée: large sections of each of them were left behind to guard his communications with France, and others were before Saragossa. Bessières marched from Burgos with the brigade of the Imperial Guard: at Palencia he picked up Lasalle’s cavalry with half Mouton’s newly arrived division of veterans (the second brigade was left at Vittoria) and a small part of Merle’s division, which had been hastily brought over the mountains from Santander to join him. There was also present the larger half of Verdier’s division, of which the rest was now in Aragon with its commander[135].
On the evening of July 13, Lasalle’s light cavalry got in touch with the outposts of the Spaniards near Medina de Rio Seco, and reported that Blake and Cuesta were present in force. On the next morning Bessières marched before daybreak from Palencia, and just as the day was growing hot, discovered the enemy drawn up on rising ground a little to the east of the small town which has given its name to the battle. Blake had 15,000 infantry and 150 cavalry with twenty guns[136]; Cuesta 6,000 infantry and 550 cavalry, but not a single cannon. They outnumbered Bessières by nearly two to one in foot soldiery, but had little more than half his number of horse, and only two-thirds as many guns.
A more prudent general than Cuesta would have refused to fight at all with an army containing in its ranks no less than 9,000 recruits, and almost destitute of cavalry. But if fighting was to be done, a wise man would at any rate have chosen a good position, where his flanks would be covered from turning movements and inaccessible to the enemy’s very superior force of horsemen. The old Captain-General cared nothing for such caution: he had merely drawn up his army on a gentle hillside, somewhat cut up by low stone walls, but practicable for cavalry at nearly every point. His flanks had no protection of any kind from the lie of the ground: behind his back was the town of Medina de Rio Seco, and the dry bed of the Sequillo river, obstacles which would tend to make a retreat difficult to conduct in orderly fashion. But a retreat was the last thing in Cuesta’s thoughts.