Definition of Battle of actium

The Battle of Actium was the decisive engagement in the Final War of the Roman Republic between the forces of Octavian and those of Mark Antony. It was fought on September 2, 31 BC, on the Ionian Sea near the Roman colony of Actium in Greece. Octavian's fleet was commanded by Marcus Vipsanius Agrippa, while Antony's fleet was supported by the fleet of his lover, Cleopatra VII, queen of Ptolemaic Egypt.