<Li> Second Persian invasion </Li> <Li> Wars of the Delian League </Li> <P> The Greco - Persian Wars (also often called the Persian Wars) were a series of conflicts between the Achaemenid Empire of Persia and Greek city - states that started in 499 BC and lasted until 449 BC . The collision between the fractious political world of the Greeks and the enormous empire of the Persians began when Cyrus the Great conquered the Greek - inhabited region of Ionia in 547 BC . Struggling to rule the independent - minded cities of Ionia, the Persians appointed tyrants to rule each of them . This would prove to be the source of much trouble for the Greeks and Persians alike . </P> <P> In 499 BC, the tyrant of Miletus, Aristagoras, embarked on an expedition to conquer the island of Naxos, with Persian support; however, the expedition was a debacle and, pre-empting his dismissal, Aristagoras incited all of Hellenic Asia Minor into rebellion against the Persians . This was the beginning of the Ionian Revolt, which would last until 493 BC, progressively drawing more regions of Asia Minor into the conflict . Aristagoras secured military support from Athens and Eretria, and in 498 BC these forces helped to capture and burn the Persian regional capital of Sardis . The Persian king Darius the Great vowed to have revenge on Athens and Eretria for this act . The revolt continued, with the two sides effectively stalemated throughout 497--495 BC . In 494 BC, the Persians regrouped, and attacked the epicentre of the revolt in Miletus . At the Battle of Lade, the Ionians suffered a decisive defeat, and the rebellion collapsed, with the final members being stamped out the following year . </P>

When were the persian wars why were the wars fought
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