Sir Arthur Wellesley was prevented from completing Soult's defeat by pursuing him into Galicia, because, after the Spaniards had sustained the severe defeat of Tudela, the French had penetrated into Andalusia in great strength, where they were only opposed by an ill-equipped and dispirited army of 40,000 men, under the rash and ill-starred General Cuesta. It was evident, that Marshal Victor, who commanded in Andalusia, had it in his power to have detached a considerable part of his force on Lisbon, supposing that city had been uncovered, by Sir Arthur Wellesley's carrying his forces in pursuit of Soult. This was to be prevented, if possible. The English general formed the magnificent plan, for which Napoleon's departure to the Austrian campaign afforded a favourable opportunity, of marching into Andalusia, uniting the British forces with those of Cuesta, and acting against the invaders with such vigour, as might at once check their progress in the South, and endanger their occupation of Madrid. Unhappily an ill-timed jealousy seems to have taken possession of Cuesta, which manifested itself in every possible shape, in which frowardness, and a petty obstinacy of spirit, could be exhibited. To no one of the combined plans, submitted to him by the English general, would he give assent or effectual concurrence; and when a favourable opportunity arrived of attacking Victor, before he was united with the forces which Joseph Buonaparte and Sebastiani were bringing from Madrid to his support, Cuesta alleged he would not give battle on a Sunday.[40] [Sidenote: BATTLE OF TALAVERA.] The golden opportunity was thus lost; and when the allies were obliged to receive battle instead of giving it, on the 28th July, 1809, it was without the advantages which the former occasion held out. Yet the famous battle of Talavera de la Reina, in which the French were completely defeated, was, under these unfavourable circumstances, achieved by Sir Arthur Wellesley. The event of this action, in which the British forces had been able to defend themselves against double their own number, with but little assistance from the Spanish army, became, owing to the continued wilfulness of Cuesta, very different from what such a victory ought to have produced. The French troops, assembling from every point, left Sir Arthur no other mode of assuring the safety of his army, than by a retreat on Portugal; and for want of means of transport, which the Spanish general ought to have furnished, more than fifteen hundred of the wounded were left to the mercy of the French.[41] They were treated as became a courteous enemy, yet the incident afforded a fine pretext to contest the victory, which the French had resigned by flying from the field.