It was some days before the archduke's army moved forward again. The troops were exhausted by the long marches they had made, and there was a difference of opinion among the generals as to the course that had best be followed. The king wished to pursue the beaten enemy and, if possible, to intercept their march towards France, but Count Staremberg and Stanhope were of opinion that they should first occupy Madrid, and then march into Navarre, so as to bar the advance of fresh French troops into Spain, and at the same time open communications by sea with England, whence they could be supplied with reinforcements and stores of provisions.

Finally, Charles gave way, and the allies marched towards Madrid. The main portion of the army halted at Alcala, a day's march from the capital, and General Stanhope marched on with his division to Madrid, which opened its gates without resistance, Philip having retired with his army. Charles entered the city on the 28th of September, 1710.

The alarm, in France, at the news of the defeat at Saragossa was great, and Louis at once despatched the Duke of Vendome to command there. The latter, travelling fast, and gathering up the garrisons of the towns through which he passed, crossed the frontier at nearly the same time as Charles entered Madrid, and effected a junction with de Bay's army; which had, by this time, been increased by some fourteen thousand men, drawn from the garrisons of towns in Navarre, Castile, Galicia, and Valencia.

Vendome had no doubt that the intention of the allies, in marching upon Madrid, was to open communication with the Portuguese, and determined to throw himself between the capital and the frontier. Marching with all speed, he encamped near Salamanca on the 6th of October, and thence moved to Plasencia, thereby securing the bridge of Almarez, and preventing the Portuguese from joining Charles.

Had it not been for the usual indecision and want of energy on the part of the Portuguese Government, the junction might have been effected before Vendome arrived at Plasencia, for both Charles and Stanhope had, after the victory of Saragossa, written urgently, begging that the Portuguese army should at once advance and join them at Madrid; and that, at any rate, if the whole army could not move, at least the troops in the pay of England should push forward instantly. Stanhope, indeed had marched with his division to the bridge of Almarez to facilitate the junction, and had defeated a Spanish force guarding the bridge. However, the Portuguese did not arrive; and when a messenger brought the alarming news that a Spanish and French army had occupied Plasencia, Stanhope fell back towards Madrid.

As large French reinforcements were known to be approaching the frontier, and Philip's army was already much superior in numbers to that of the allies, it was decided, in a council of war, to evacuate Madrid. The forces which had occupied Toledo and other towns were recalled, and, early in December, the army left the capital; the archduke riding at once to Barcelona, while the army, of which Stanhope's division formed the rear guard, followed in the same direction.

The movement had been delayed too long. Vendome and Philip were already at hand, and on the 9th fell upon Stanhope's division at Brihuega. This force, consisting of eight English battalions and the same number of Portuguese horse, defended themselves desperately, and although the town was wholly without fortifications, they repulsed every attack until their ammunition was exhausted, and they were then forced to surrender. Staremberg, on hearing that Stanhope was attacked and surrounded, turned back and marched with all speed to relieve him, but on arriving within three hours' march of the town, heard that he had surrendered.

The Duke of Vendome, hearing of his coming, drew his troops out and formed them in line of battle, and the next morning attacked him vigorously. The allied right held their ground, but the left fled, and Vendome swept his right round and took the centre and right of the allies in the rear. Three battalions of the second line, however, fell in turn upon the French rear and repulsed them, and the left wing, rallying again, renewed the battle.

The combat was indecisive, both parties claiming the victory. Staremberg wrote to Charles that he had captured all the enemy's guns, and had killed six thousand of them; while the French claimed that they had totally defeated the allies, and captured all their cannon, killed four thousand, and taken nine thousand prisoners. The balance of probability lies to some extent with the French, for the day after the battle, Staremberg retired and marched to Barcelona; but the fact that he was not at once pursued shows that the French and Spaniards must have suffered very heavily.

Desmond had passed unscathed through the battle of Saragossa. O'Neil had been severely wounded, but had managed to sit his horse until the division effected its junction with the Marquis de Bay's shattered forces. Great was the wrath among the two Irish regiments at the issue of the battle.