The Lamian War or the Hellenic War (323–322 BC), was an unsuccessful attempt by Athens and a large coalition of Greek states to end the hegemony of Macedonia over Greece just after the death of Alexander the Great. It was the last time Athens played a significant role as an independent power.
War was simmering in Greece after Alexander the Great issued the Exiles' Decree (in 324 BC), which ordered the Greek states to return all the people they had forced into exile. This decree meant that Athens had to surrender the island of Samos, colonised by Athenian clerurchs since 365 BC, while the Aetolian League had to leave Oiniadai, taken c.330 BC. Once the death of Alexander became known in June 323 BC, most states in mainland Greece revolted and founded the Hellenic League, recalling the alliance forged during the Persian Wars; this time with Macedonia in the role of the foreign invader. The Greeks were initially successful under their Athenian commander in chief Leosthenes, who managed to besiege Antipater, the Macedonian general in Europe, in the city of Lamia, which gave its name to the war. At this point however, the arrival of a large Macedonian fleet commanded by Cleitus the White from the Levant turned the tide in favour of Macedonia. Even though Athens had more ships than Macedonia, it did not have enough crews to man them all and its overextended navy was defeated off the Echinades island and Amorgos.