The naval Battle of Cyzicus took place in 410 BCE during the Peloponnesian War.
In the battle, an Athenian fleet commanded by Alcibiades, Thrasybulus, and Theramenes routs and completely destroys a Spartan fleet commanded by Mindarus.
The victory allows Athens to recover control over a number of cities in the Hellespont over the next year.
In the wake of their defeat, the Spartans make a peace offer, which the Athenians reject.
