A Spartan naval victory near Syme in 411 BC demonstrated the dangers of divided fleets and reinforced Spartan-Persian cooperation in the Aegean.
Key Facts
- Date
- 411 BC
- Location
- Near island of Syme, south-eastern Aegean Sea
- Spartan ships sunk
- 3 ships
- Athenian ships lost
- 6 ships
- Athenian ships engaged
- ~20 ships
- Spartan reinforcement ships from Caunus
- 27 ships
By the Numbers
Location
Cause → Event → Consequence
In 411 BC, Sparta concluded an alliance with Persia, negotiated by Therimenes, who transferred command of the Spartan fleet to Astyochus. Astyochus was ordered to sail to Cnidus to rendezvous with twenty-seven Persian-equipped ships from Caunus. The Athenian commander Charminus, based at Samos and informed by the Melians, moved to intercept the Spartan fleet near Syme.
The two fleets met during a storm with poor visibility after many Spartan ships had scattered from their main body. Charminus engaged only the visible Spartan left wing with approximately twenty ships, sinking three Spartan vessels. The remainder of the Spartan fleet then appeared and encircled the Athenians, forcing Charminus to retreat to Halicarnassus after losing six ships.
Following the battle, the remaining Athenian fleet sailed from Samos to Cnidus, but neither side chose to renew the engagement. The Spartan victory near Syme, underpinned by Persian material support, reinforced Spartan naval confidence and highlighted Athenian vulnerability in the eastern Aegean during this phase of the Peloponnesian War.
Belligerents & Mobilization Analysis
Side A
1 belligerent
Charminus.
Side B
1 belligerent
Astyochus.