Aetos (Αετός) is a municipality in Messenia, Greece. Messenia or Messinia (Μεσσηνία is a prefecture in the Peloponnese, a region of Greece. Greece (Ελλάδα transliterated: Elláda, historically, Ellás,) officially the Hellenic Republic (Ελληνική Δημοκρατία Population 3,264 (2001). The seat of the municipality is in Kopanaki. Kopanaki or "Kopanáki" is a small but scenic Greek town in Messenia which lies in the south-western