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.
Anglo-Scottish Wars
France also played a key role throughout the period of the Anglo-Scottish Wars. Scots and English soldiers on French soil during the Hundred Years War (1337–1453) generally fought on opposing sides, with the Scots standing for the French against the English under the Auld Alliance. France in later periods, in turn, often intervened on Scottish soil for the Scots. This French involvement had increasingly complex political consequences for all sides by the later 16th century.