Why were the humans able to defeat the forces of sauron at helms deep?

Answer 1

The humans were able to defeat the forces of Sauron at Helm's Deep primarily due to their strategic use of the fortress's defenses and the unexpected arrival of reinforcements, particularly the Riders of Rohan led by Gandalf. The stronghold's walls and strategic positioning allowed them to hold off the overwhelming forces initially. Additionally, the courage and determination of the defenders, combined with the element of surprise from Gandalf's timely arrival, ultimately turned the tide of battle in their favor.