sentences:  Faced with the king's army, Odo agreed to leave Fulk in peace.After the siege ended and Odo retreated, Fulk had to deal with hostilities along the western frontier of his lands.Despite Odo's agreement with Hugh, the Count of Blois exploited Fulk's divided attention to install a force at Château de Châteaudun from which he could move to capture Langeais should the opportunity arise.