Which weapon brought significant changes to warfare during the hundred years war

One weapon that brought significant changes to warfare during the Hundred Years' War was the longbow. The English longbow was able to shoot arrows with great force and accuracy over long distances. This weapon gave the English an advantage over the French, who primarily used crossbows. The longbow could be fired more rapidly and had a longer effective range than the crossbow, which allowed the English to dominate the battlefield. The use of the longbow changed the dynamics of warfare, as it required new tactics and strategies to overcome its devastating power. The longbow played a crucial role in several English victories during the Hundred Years' War, such as the Battle of Crécy and the Battle of Agincourt.