[Sidenote: 1707] While the regiment was recruiting in England, the allied army was defeated at Almanza, and a French and Spanish force invaded Portuguese Estremadura and the Alemtejo, when four regiments (the fifth, twentieth, thirty-ninth, and Stanwix’s, afterwards disbanded) embarked from Ireland for Portugal; and during the winter the THIRTEENTH regiment, being again fit for duty, proceeded to the same destination: it was placed on the strength of the army in Portugal on the 24th of December, 1707. [Sidenote: 1708] After landing at Lisbon, the regiment marched under the orders of its colonel, the Earl of Barrymore, to the Alemtejo; in the spring of 1708 it was encamped at Fuentes de Sapatores, between Elvas and Campo Mayor, with the army commanded by the Marquis de Fronteira, and was formed in brigade with the regiments of Stanwix and Galway (newly-raised corps, afterwards disbanded) under Brigadier-General Thomas Pearce (of the fifth foot); but the services of the THIRTEENTH were limited to operations of a defensive character. [Sidenote: 1709] In April, 1709, the regiment was encamped near Estremos, from whence it was removed to Elvas, and subsequently to the banks of the Caya. On the 7th of May, the French and Spaniards under the Marquis de Bay marched in the direction of Campo Mayor, when the Portuguese generals resolved to pass the _Caya_ and attack the enemy, contrary to the advice of the Earl of Galway. The Portuguese cavalry of the right wing crossed the river, and opened a sharp cannonade; but when the opposing horsemen advanced to charge, the Portuguese squadron galloped out of the field, leaving their cannon behind. The infantry of the allied army stood its ground, repulsed the charges of the Spanish cavalry three times, and afterwards commenced its retreat, when the Earl of Galway led forward the THIRTEENTH, Stanwix’s, and his own regiment, to favour the retrograde movement. The THIRTEENTH were in front, and charged the Spaniards with distinguished gallantry; the other two regiments of the brigade also evinced great bravery, and the three corps overthrew the leading columns of the opposing army, and recaptured the Portuguese guns. Animated and encouraged by this success, the three regiments pressed forward until they became exposed to the attack of superior numbers, when the Portuguese cavalry of the left wing were ordered to support them, but instead of obeying these orders, the Portuguese squadrons galloped to the rear. Thus forsaken, the three regiments were cut off from the allied army, surrounded by opponents, and only a few officers and men were able to cut their passage through the host of adversaries which environed them; the remainder were forced to surrender prisoners of war. Among the prisoners were Major-General Sankey and Brigadier-General Thomas Pearce.