His father had begun a war with Scotland to regain lost territories that were captured by the Scots during the reign of his father Edward II and began the military operations undertaken by Edward III's grandfather, Edward I of England and recaptured English lands such as Berwick-Upon-Tweed. Edward III took his grandfather's military strategies and tactics against the Scots and to avenge the humiliating defeat of the English, under his father Edward II, at the Battle of Bannockburn in 1314 and this time, Edward III defeated the Scots at the decisive Battle of Halidon Hill in 1333, killing many Scottish nobles and routing the entire Scottish army. Edward III was able to recover the country politically and militarily, and was welcomed as a "great champion of the English nation".