The 100 years War was indeed a protracted conflict which, at different phases, included the Kingdom of England therefore Kingdom of France. It began, for hereditary reasons, in 1337 and have been battled on French territory. It marked a decisive turning point in army strategy and techniques. Through the century War the Heavy French cavalry was indeed the queen about the battlefield. But because the very first phases pertaining to war, the French military have been defeated by the English Troops, well competed in utilizing longbows and infantry, in the battle of Crecy, Poitiers and, in 1415, Azincourt. But from 1429, as a consequence of the leadership of Joan of Arc through the siege of Orleans, the French troops discovered again ethical and dedication. The a century War completed in 1453 due to the almost complete control in regards to the nation by the Kingdom of France.