Skip to content
The War AtlasThe · War · Atlas

BATTLE // -428 BCE

Battle of Rhium

LOADING MAP TELEMETRY…

Source · Wikipedia

Significance

The Battle of Rhium was a naval engagement in the Peloponnesian War in which an Athenian fleet under Phormion intercepted a Peloponnesian fleet of 47 triremes attempting to cross the Gulf of Patras toward the northern shore. The Peloponnesian objective was to reach Acarnania in support of an offensive in northwestern Greece, a region Athens sought to deny to Spartan-led forces. By engaging the enemy fleet during the crossing, the Athenians disrupted that passage and the broader land offensive it was intended to support. The battle is also recorded as the Battle of Chalcis, reflecting some ambiguity in the ancient sources over its precise location.

Tactics

Phormion's fleet attacked the Peloponnesian triremes while they were in the act of crossing the Gulf of Patras, exploiting their vulnerability during the transit. No further detail on formations, maneuvers, or terrain use is given in the source.

Commanders (1)

Athens

Compare with sibling battle

6 options

Pick a battle to compare side-by-side

Related

6 sibling battles · 0 factions

Last verified July 2026
Cite this page →Suggest a correction →