What did Alexander do to help unite the Greeks under his rule?

Alexander the great united the Greeks under his rule primarily through military conquest and strategic diplomacy. After ascending to the Macedonian throne, he swiftly subdued rebellious city-states and secured loyalty by presenting himself as a liberator against Persian domination. He also fostered a sense of shared identity among the Greeks by emphasizing a common heritage and purpose, particularly through his campaigns against Persia. Additionally, he established a federation known as the Hellenic League, which further solidified Greek unity under his leadership.