The year 1337 marked the beginning of the Hundred Years' War, a series of conflicts between the kingdoms of England and France. This war was primarily fought over territorial disputes and claims to the French throne, significantly impacting both nations' political landscapes. In 1337, Edward III of England declared himself the rightful king of France, challenging the rule of Philip VI. This declaration set the stage for a prolonged struggle that would last until 1453, involving notable battles such as Crécy and Agincourt, and leading to significant changes in medieval warfare and national identity.