 Robert III of Flanders had continued to resist France militarily, but by Philip's accession to the throne had found himself increasingly isolated politically in Flanders itself.Meanwhile, the French position had become strained by the need to maintain a wartime footing.Louis X had prohibited exports of grain and other material to Flanders in 1315, resulting in a profitable smuggling industry that in turn discouraged legal trade with the French crown along the border region; Louis was forced to directly requisition food for his forces, resulting in a string of complaints from local lords and the Church.