Why does Herodotus believe the Trojan war lasted so long?

Herodotus does not specifically discuss the length of the Trojan War in detail, as his focus is more on the Persian Wars. However, he does suggest that prolonged conflicts can arise from factors such as the complexity of alliances, the motivations of various leaders, and the impact of divine intervention. The war's duration may also reflect the deep-rooted nature of the conflict, fueled by personal grievances and the desire for glory among the Greek leaders. Ultimately, Herodotus emphasizes the multifaceted causes of war, which can prolong conflicts beyond the initial causes.