Answer
Thermopylae, a narrow mountain pass in Greece, witnessed a significant victory for Xerxes I, the Persian king. In 480 BC, during the Persian invasion of Greece, Xerxes' massive army faced a small force of Spartan and Thespian warriors led by King Leonidas. Despite their valiant defense, the Greeks were outnumbered and defeated, but their heroic stand at Thermopylae became a symbol of Greek resistance and courage.