 During late 430s and 431 Aetius was in Raetia and Noricum, defeating the Bacaudae in Augusta Vindelicorum, re-establishing Roman rule on the Danube frontier, and campaigning against the Juthungi.In 431 he returned to Gaul, where he received Hydatius, bishop of Aquae Flaviae, who complained about the attacks of the Suebes.Aetius then defeated the Franks, recapturing Tournacum and Cambriacum.