The Duke of Alba began the invasion of Navarre by entering Ziordia and Goizueta. 12,000 soldiers he had been with in the wars of Africa and Italy. The Navarros made many defence attempts, for example at the Uharte-Arakil defence point. The Ronchalan soldiers also prepared an ambush at the Oskia gorge, but in vain. On 25 July the Duke of Alba would enter Pamplona.