Answer: Athens were forced to surrender, and the Sparta won the Peloponnesian War in 404 BC. Hope this helps
Step-by-step explanation:
The reason for this war are sometimes traced back as far as the democratic reforms of Cleisthenes, which Sparta always opposed. However, the more immediate reason for the was Athenian control of the Delian League, the vast naval alliance that allow it to dominate the Mediterranean Sea.
The Spartans and their Allies were painted as for fighting for Greek freedom in the face of the threat of Persian enslavement by Ancient Greek source.