The Hundred Year War was a war with England and France. The French loss due to wearing heavy armor, their weapons such as swords and lances, and crossbows that were only effective at a short range. On the other hand, The English had very light armor and had the weapon, Longbows. A longbow can be effective from a far distance that flew farther, faster, with great accuracy. and took a part of Frances land. But, in the 1415, The France came back to win with better armor and better weapons and won their land back.