In 710 Ine was at war with Geraint, king of Dumnonia. This was part of his campaign against the and expanding the borders of Wessex west to the River Tamar. But he was unable to conqueror Cornwall. Ine was defeated by the Cornish in 722 at the Tamar river. All through his reign Ine seems to have been on good terms with the Mercians. There is only one incident; a battle at Wodnesbeorg in 715 between Ine and Ceolred, King of Mercia. But the only source for this informaiton, the Anglo-Saxon Chronicle does not say who won.