 The talks led to the Fourth Treaty of Blois on 18July 1512, providing for mutual assistance to keep Navarre's neutrality.It also brought attention to the English threat to France after their disembarkation in Hondarribia, Gipuzkoa in Basque territory suzerain to Castile.The next day Ferdinand sent his troops across the border from Álava into Navarre, commanded by General Don Fadrique de Toledo, Duke of Alba, who had been involved in the conquest of Granada.