noun
Delian League
Historical term for the Athenian-led alliance of Greek city-states in the 5th century BCE.
デロス同盟はペルシア戦争後に結成された。
The Delian League was formed after the Persian Wars.
From Greek Δῆλος (Delos), the island where the league's treasury was originally kept, and 同盟 (alliance).