Soult proceeded to invade Portugal in the north. However, the Portuguese held on, giving the British the impetus to send Wellesley back with additional regiments of troops to help recover the Iberian peninsula. Wellesley, aided by the remaining Portuguese regiments hastily scraped together, liberated Portugal. A third invasion took place, led by Marshal André Masséna. The Anglo-Portuguese Army managed to halt the French advance at the fortifications of Torres Vedras and successfully defeat Masséna's troops, and slowly recovered the Iberian peninsula. Wellesley was made Duke of Wellington in recognition of his services. The Portuguese army was put under the command of Marshal Beresford and was most heavily engaged under his leadership in the bloody Battle of Albuera. Portuguese forces also formed part of Wellington's advance into southern France, in 1813–14.