Passage: Theodoric was also an enemy of the Suevic king Rechila in Iberia, because Visigoth troops assisted the imperial commander Vitus in his campaign against the Suevi in 446. But the ability of this people to conduct a strong defence and the better relations between Geiseric and the Roman Empire led Theodoric to change his foreign policy. He therefore, in February 449, married one of his daughters to the new Suevic king Rechiar, who visited his father-in-law at Tolosa in July 449. On his return – according to the author Isidore of Seville - Rechiar, with the assistance of Visigoth troops, devastated the area surrounding the city of Caesaraugusta and managed by guile to take Ilerda.

Question: Who did the people build a better defense and relationship with?
Geiseric and the Roman Empire