 Complete the following phrase:  In 1337 Phillip confiscated Aquitaine and Ponthieu from Edward alleging he was harbouring Phillips fugitive cousin and enemy, Robert of Artois. In response, Edward proclaimed himself king of France to encourage the Flemish to rise in open rebellion against the French king. The conflict, later known as the Hundred Years War, included a significant English naval victory at the Battle of Sluys, and a victory on land at Crécy, leaving Edward free to capture the important port of Calais. A subsequent victory against Scotland at the Battle of Nevilles Cross resulted in the capture of David II and reduced the threat from Scotland. The 