But everything depended on swift movement and the economy of time. Should Soult refuse to fight, and resolve to appeal for help to the other French armies, it was certain that 50,000 men might be gathered to his aid within a month or five weeks. All the Anglo-Portuguese troops combined, supposing that every man were drawn in from the north to join Beresford, would not make up over 60,000 sabres and bayonets. On the other hand, a junction between the Armies of Andalusia and Portugal, with aid lent by Bessières and the Army of the Centre, could certainly produce 80,000 men, perhaps more. Wherefore it might be argued that if Badajoz could be taken in a month a great success might be scored. But if the siege were to linger on over that time, the enemy would be able to concentrate in such force that the enterprise might become impracticable. The game was worth trying.

Wellington’s dispatches to Lord Liverpool and other correspondents between the 14th and the 25th of May make it perfectly clear that these were his views. ‘Fortunately for me,’ he wrote, ‘the French armies have no communications, and one army has no knowledge of the position or of the circumstances in which the others are placed, whereas I have a knowledge of all that passes on all sides. From this knowledge I think I may draw troops from Beira for my operations against Badajoz. But I cannot venture further south till I shall get Ciudad Rodrigo, without exposing all to ruin[506].’ Again, ‘I do not think it possible for me to undertake more in the south, under existing circumstances, than the siege of Badajoz. I cannot, by any effort I can make, increase the British and Portuguese [in that quarter] beyond 30,000 men, to which the Spanish force may add 8,000 or 10,000 more[507].’ He was perfectly aware that a concentration against him was possible, but that it would take a long time to come about. ‘I do not know when Marmont can be ready to co-operate with Soult; however, as the siege of Badajoz can be raised with ease and without loss, whenever it may be necessary, I have thought it best to lose no time, and to adopt every means to get that place, if I can, before the enemy’s troops can join. If I cannot get it, I may raise the siege and fight a battle or not, as I may find most proper, according to the state of our respective forces[508].’ It is clear, then, that Wellington’s utmost ambition was to take Badajoz, and that he foresaw that he must take it within a limited time, under penalty of seeing the scheme fail owing to the concentration of the enemy. His letters show that he knew that Drouet and the 9th Corps had started for Andalusia immediately after Fuentes de Oñoro, and in calculating Soult’s utmost available force in June he takes Drouet into account[509], though he somewhat under-values his numerical strength.

The garrison of Almeida had made its escape on the night of May 10th-11th; the French army had drawn back beyond Ciudad Rodrigo, and dispersed itself into cantonments, on May 12th. As early as the morning of May 14th the column destined for Estremadura set out upon its march. It consisted, as has been already mentioned, of the 3rd and 7th Divisions, with the artillery attached to them. For the purpose of providing cavalry for scouting and exploration, the 2nd Hussars of the King’s German Legion were attached. This corps was the first cavalry reinforcement that Wellington had received for more than a year. It had landed at Lisbon in April[510], and had marched up to Celorico; from thence it was ordered to strike across country, to join the column marching for the valley of the Guadiana, and to place itself at the disposition of Picton, its senior officer. They met at Belmonte, and went on their southward way in company. The route lay through Castello Branco, the boat-bridge of Villa Velha, Niza, and Portalegre. Picton reached Campo Mayor, in the immediate vicinity of Badajoz, on May 24th, having taken ten days only to cross the roughest and most thinly peopled corner of Portugal. The average of marching had been fifteen miles a day, an excellent rate when the character of the roads is taken into consideration.

Wellington himself started from Villar Formoso two days after the departure of the troops, on May 16th, and riding with his accustomed headlong speed reached Elvas on the afternoon of May 19th[511]. He had passed Picton between Sabugal and Belmonte. Before quitting the line of the Agueda, he drew up elaborate instructions for Sir Brent Spencer, who was left, as usual, in charge of the army on the northern frontier. The force entrusted to Spencer consisted of the 1st, 5th, 6th, and Light Divisions, Pack’s and Ashworth’s Portuguese brigades, and the cavalry of Slade, Arentschildt, and Barbaçena, altogether about 26,000 foot and 1,800 horse. The directions left were much the same as those which had been issued during Wellington’s earlier visit to Estremadura in April. ‘It is probable that some time will elapse before the French army in this part of Spain will be capable of making any movement against the Allies.’ Yet the unexpected might happen, and Spencer was told that, while so large a detachment was absent in the south, he must adopt a purely defensive attitude in the unlikely event of Marmont’s taking the field against him. For the present he was to hold the line of the Azava, facing Ciudad Rodrigo, with his advanced posts. The divisions were to be cantoned between Almeida and Nava de Aver, so that they could be concentrated in a single day. If the enemy should advance with a large force, as if intending a serious invasion, Almeida was to be evacuated, since it would be impossible that the repairs to its ruined ramparts should have got far enough to render the place tenable. The army was to fall back, not westward towards Almeida and Guarda, but southwards, firstly to the position before Alfayates which had already been marked out in April, then to a second position at Aldea Velha and Rendo, then to a third beyond the Coa. In case Marmont should push even further, the line of retreat was to be from Sabugal to Belmonte, and finally by the mountain road of the Estrada Nova towards the Zezere. ‘But the strong country between Belmonte and the Zezere must not be given up in a hurry[512].’ All this was pure precaution against the improbable: Wellington was convinced, and quite rightly, that Marmont would be incapable for some weeks, probably for some months, of any serious offensive action against Portugal. To invade the Beira he would have to collect a store of provisions such as the exhausted kingdom of Leon could not possibly give him. His magazines were known to have been empty after Fuentes de Oñoro, and his troops had been dispersed because there was no possibility of feeding them while they were concentrated. Spencer could be in no possible danger for many a day; so strongly did Wellington feel this, that when he reached Elvas he wrote back to his lieutenant on May 24th that he intended to borrow from him Howard’s British and Ashworth’s Portuguese brigades, and thought that this could be done without any risk. But if, ‘notwithstanding my expectations to the contrary,’ Marmont seemed to be on the move, the brigades might be stopped[513].

Just before starting on his ride from Villar Formoso to Elvas Wellington received Beresford’s dispatches of May 12, which informed him that Soult (as had been expected) was on the march from Seville to relieve Badajoz, and that, according to the instructions that had been given, the allied army of Estremadura would fight him, if he were not too strong to be meddled with. It was the news that battle was impending which made the Commander-in-Chief quicken his pace to fifty miles a day, in hopes that he might be in time to take charge of the troops in person. He galloped ahead, and on the morning of the 19th heard, between Niza and Elvas, that there had been a pitched battle on the 16th, and that Soult had been repulsed. The details met him at Elvas, where Arbuthnot, Beresford’s aide-de-camp, handed him the Albuera dispatch. He read it through, and struck out some paragraphs before sending it on to the Ministry at home. The reason for these erasures was that he considered that Beresford’s tone was a little too desponding, and that he had laid too much stress on the terrible loss of the British troops, and too little on the complete check to Soult’s designs[514]. He wrote to the Marshal to hearten him up, to tell him that the result achieved had been worth the cost. ‘You could not be successful in such an action without a large loss, and we must make up our mind to affairs of this kind sometimes—or give up the game[515].’

With the military situation that he found in existence on May 19th Wellington professed himself satisfied. Hamilton’s Portuguese division had reinvested Badajoz on the preceding day. Soult was in full retreat, with the allied cavalry in pursuit of him. It was uncertain whether he would fall back on Seville or halt at the line of the Sierra Morena; but at any rate his bolt was shot: he could give no trouble for some weeks, and would only become dangerous if he strengthened his army by calling up Sebastiani and Victor, and evacuating the Cadiz Lines and Granada. This Wellington rightly believed that he would not think of doing. He would rather cry for aid to his neighbours, and it would take a long time for reinforcements to reach him from the Army of Portugal or from Madrid. There was a month in hand, and Badajoz must be captured if possible within that space.

The first thing necessary was to push Soult as far back as he would go, and from the 20th to the 26th Beresford was engaged in following him up. At first only the cavalry was available for pursuit: Hamilton’s division had been sent back to Badajoz; the 2nd and 4th were allowed five days of repose on the battlefield of Albuera. Not only were they absolutely exhausted, but all their transport was engaged in the heart-rending task of forwarding to Elvas convoy after convoy of British wounded. The French, of whom the last were not collected till three days after the battle, were packed in an extemporized hospital at Albuera village, where they suffered much for lack of surgeons. It would have been possible to send Blake’s army to support the British cavalry if he had possessed provisions, but he reported that his men were starving, and that he must disperse them to procure food; accordingly they were sent to Almendral, Barcarrota, and the neighbouring villages, to gather stores as best they might.

Soult meanwhile gave back slowly, being hampered by his immense convoys of wounded. On the 20th he retired from Solana to Almendralejo and Azeuchal, on the 21st to Villafranca and Fuente del Maestre; on the 22nd he was in march for Usagre and Llerena, so that it was evident that he was retiring on the Sierra Morena by the Llerena and not by the Monasterio road. It was only on this last day that Beresford’s infantry were able to start in support of the cavalry advanced guard, which had been cautiously following on Soult’s track. The Albuera divisions were sad wrecks of their former selves; the 2nd had but 2,500 bayonets in its three brigades, the 4th about 2,200 British and 2,500 Portuguese; Alten’s German brigade was less than 1,000 strong, so that the whole did not make up much more than 8,000 men. But Blake was requested to move on Feria and Zafra, parallel to the advance of the British column, and did so, having collected a few days’ provisions in his cantonments. The whole force was sufficient to move Soult back, since his troops were in a despondent humour, and did not amount to more than 13,000 or 14,000 men, for he had been forced to detach a brigade under Gazan to escort his immense train of wounded back to Seville. But the allied infantry never came up with the retreating French; by the time that it had reached Villalba and Fuente del Maestre Soult was at Llerena, thirty miles ahead.