Richard I of England was fighting to maintain control over his French territories against King Philip II. Richard was generally successful through skilled military tactics, fortifying defenses, and strategic use of diplomacy. He formed alliances with the counts of Flanders and Toulouse by making concessions, depriving Philip II of allies. Richard's momentum grew as barons defected to his side, impressed by his military strength and finances. However, rebellions still occurred in Aquitaine and Richard had yet to fully regain control of the Vexin region from Philip II when he died.