changes in military came in one form of advancements in weaponry – the longbow. The early success of the English army during the conflict stemmed from their reliance on the Welsh Longbow. By the fourteenth-century, most armies were composed of cavalry and infantry armed with swords, spears, or cross bows. However, with the successful incorporation of the Welsh Longbow into their army, the English were the early victors of the conflict. The Battle of Agincourt (1415) is one example