The Hundred Years War The Hundred Years War was considered to be the last medieval war that played a significant role in English history.(Schwarz) The Hundred Years War was a series of wars fought between Great Britain and France with Burgundy playing a small role for the French. Although the conflict lasted over a century the war was broken intermittently by treaties and truces. (Goubert) There were more stalemates than actual battles. (Froissart) Actual fighting didn't brake out until the mid 1300's but the conflict stemmed way back to 1066. (Encarta) England held areas of France that the English used in exchange for service and loyalty to the king