Ally of Athens during the Peloponnesian War

ARGOS

This ancient Greek city-state was known for its rivalry with Sparta and remained neutral for much of the conflict before joining Athens late in the war.

This clue refers to the ancient Greek city-state of Argos, which sided with Athens against Sparta in the Peloponnesian War (431–404 BCE). Argos was a key ally in the conflict, often providing military support to weaken Sparta’s dominance in the Peloponnese. The answer is straightforward—no wordplay here—just a direct historical reference to one of Athens’ most important partners during the war.