Joan of Arc’s role in the Hundred Years' War was significant as she emerged as a symbolic figure and leader, claiming divine guidance. Her participation boosted the morale of French troops during critical battles, notably the Siege of Orléans, where she played a pivotal role in lifting the siege. Joan’s leadership and faith transformed the course of the war, leading to Charles VII’s coronation. Captured and executed, she became a martyr and a national heroine, symbolizing courage and patriotism in France's struggle for independence.