The Battle of Idomene was a battle in the

Peloponnesian War The Peloponnesian War (431–404 BC) was an ancient Greek war fought between Athens and Sparta and their respective allies for the hegemony of the Greek world. The war remained undecided for a long time until the decisive intervention of th ...

in 426 BC, between the

Athenians Athens ( ; el, Αθήνα, Athína ; grc, Ἀθῆναι, Athênai (pl.) ) is both the capital and largest city of Greece. With a population close to four million, it is also the seventh largest city in the European Union. Athens dominates a ...

and the

Ambracia Ambracia (; grc-gre, Ἀμβρακία, occasionally , ''Ampracia'') was a city of ancient Greece on the site of modern Arta. It was captured by the Corinthians in 625 BC and was situated about from the Ambracian Gulf, on a bend of the navigabl ...

ns. The Ambracians, who were allies of the

Spartans Sparta (Doric Greek: Σπάρτα, ''Spártā''; Attic Greek: Σπάρτη, ''Spártē'') was a prominent city-state in Laconia, in ancient Greece. In antiquity, the city-state was known as Lacedaemon (, ), while the name Sparta referred t ...

, had sent a relief force to help the army that had invaded

Amphilochia Amfilochia ( el, Αμφιλοχία) is a town and a municipality in the northwestern part of Aetolia-Acarnania in Greece, on the site of ancient Amfilochia. Under the Ottoman Empire, it was known as Karvasaras (Καρβασαράς; from ''carav ...

previously. Unbeknownst to the Ambracians, the first army had been defeated, surrounded and scattered by the allied Athenians, Amphilochians and

Acarnania Acarnania ( el, Ἀκαρνανία) is a region of west-central Greece that lies along the Ionian Sea, west of Aetolia, with the Achelous River for a boundary, and north of the gulf of Calydon, which is the entrance to the Gulf of Corinth. Today i ...

ns the day before. The Ambracians, unaware of the incoming Athenian army, camped on the lower of two steep hills.

Demosthenes Demosthenes (; el, Δημοσθένης, translit=Dēmosthénēs; ; 384 – 12 October 322 BC) was a Greek statesman and orator in ancient Athens. His orations constitute a significant expression of contemporary Athenian intellectual prow ...

, the Athenian commander, occupied the higher hill, obtaining a strategic advantage. Before dawn, while the Ambracians were still asleep, they were attacked and destroyed by the Athenians. Overall, the Ambraciots lost about 1,000 men over the two battles.

Thucydides Thucydides (; grc, , }; BC) was an Athenian historian and general. His ''History of the Peloponnesian War'' recounts the fifth-century BC war between Sparta and Athens until the year 411 BC. Thucydides has been dubbed the father of "scientifi ...

describes this disaster as: "The greatest disaster to strike a single city in an equal number of days in this war."

References

Kagan, Donald. ''The Peloponnesian War''. Penguin Books, 2003. Idomene 426 BC 420s BC conflicts Idomene Ancient Acarnania {{AncientGreece-battle-stub