How many men did Xerxes bring to conquer Greece?

Xerxes I, the Persian king, is traditionally believed to have led an army of about 200,000 to 300,000 troops during his campaign to conquer Greece in 480 BC. However, estimates of the actual number vary widely among historians, with some suggesting figures as low as 70,000 to 100,000. This massive force included not only soldiers but also support personnel, such as engineers and suppliers. The campaign ultimately culminated in the famous battles of Thermopylae and Salamis.