Chivalry and Betrayal: The Hundred Years' War
In 1435 Bedford died and sworn enemies Charles VII and Phillip, Duke of Burgundy joined forces to get the English out and with Henry VI reluctance to wage war and to maintain peace by marrying Margaret of Anjou. Charles had no intention of peace and used cannon and sieges to retake France and Normandy culminating in the defeat of the English at the Battle of Castillon in the last English territory of Gascony ending the hundred years war.
Second Hundred Years' War
Like the Hundred Years' War, this term does not describe a single military event but a persistent general state of war between the two primary belligerents. The use of the phrase as an overarching category indicates the interrelation of all the wars as components of the rivalry between France and Britain for world power. It was a war between and over the future of each state's colonial empires.