Battles & Campaigns · 2 September 31 BCE

Battle of Actium

Ionian Sea, near the promontory of Actium in Greece

What happened

Octavian's fleet, led by his admiral Marcus Agrippa, fought the combined fleets of Mark Antony and Cleopatra. Octavian arrived from the north with a large fleet and army, and with Agrippa's help he cut Antony's southward communications with Egypt. The two fleets met outside the Gulf of Actium on the morning of 2 September 31 BCE. Octavian's smaller, more maneuverable ships won. Antony and his remaining forces were saved by a last-ditch effort of Cleopatra's fleet, which had been waiting nearby.

Why it matters

Result: Octavian's victory. Leaders: Octavian / Marcus Agrippa against Mark Antony / Gaius Sosius. Why it matters: Octavian's victory let him consolidate his power over Rome. In 27 BCE the Senate gave him the title Augustus, and the battle marked Rome's transition from republic to empire. Egypt became a Roman province, ending the Ptolemaic Kingdom.

What came next

Octavian pursued Antony and Cleopatra and defeated their forces in Alexandria on 1 August 30 BCE, after which both of them died. To commemorate his victory, Octavian founded the nearby city of Nicopolis ('City of Victory') in 29 BCE.

Did you know?

At the camp where he waited for the battle, Octavian built a victory memorial decorated with the bronze rams (rostra) taken from captured warships.

Timeline

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Sources

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