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What was the League of Corinth created by Philip II?

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The League of Corinth, established in 337 BCE, was an offensive and defensive alliance of Greek states—excluding Sparta—organized by Philip II of Macedon.12

Purpose and Structure

The league was designed to maintain a general peace (koinē eirēnē) across Greece. It featured a council of representatives (synedrion) from the member states, which deliberated on federal matters, including foreign policy. While the council made decisions, Philip served as the hēgemōn (president/commander), responsible for executing those decisions and commanding the alliance's armed forces. Member states were obligated to provide troops or ships based on their voting power.12

Significance

Although Philip and Macedonia held no seats on the council, the organization was effective because the states recognized Philip’s military power. The league’s primary objective was to facilitate collective action, most notably the planned war against Persia. Following Philip's death in 336 BCE, his son, Alexander the Great, assumed leadership of the league.12