Hundred Years' War
The Hundred Years' War was a series of conflicts waged from 1337 to 1453 by the House of Plantagenet, rulers of the Kingdom of England, against the French House of Valois, over the right to rule the Kingdom of France. Each side drew many allies into the war. It was one of the most notable conflicts of the Middle Ages, in which five generations of kings from two rival dynasties fought for the throne of the largest kingdom in Western Europe. The war marked both the height of chivalry and its subsequent decline, and the development of strong national identities in both countries.
Hundred Years' War
France was an ally of the Kingdom of Scotland as English kings had for some time tried to subjugate the area. In 1295, a treaty was signed between France and Scotland during the reign of Philip the Fair. Charles IV formally renewed the treaty in 1326, promising Scotland that France would support the Scots if England invaded their country. Similarly, France would have Scotland's support if its own kingdom was attacked. Edward could not succeed in his plans for Scotland if the Scots could count on French support.