The Hundred Years' War reduced the power of standing armies by diminishing the influence of nobles and emphasizing the effectiveness of large professional armies.
The Hundred Years' War affected standing armies by reducing the power of traditional nobles as warfare evolved with the use of new weapons and tactics, such as the English longbow and firearms, rendering the cavalry-focused feudal armies less effective. Monarchs began to pay for large professional standing armies, shifting power away from noble cavalry officers.
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