Looking at Classical warfare from the perspective of the non-belligerents, Robert A. Bauslaugh brings together the scattered evidence testifying to neutral behavior among the Greek city-states and their non-Greek neighbors. Were the Argives of 480/479 B.C. really “Medizers,” as many have accused, or were they pursuing a justifiable policy of neutrality as they claimed? On what basis in international law or custom did the Corcyraeans claim non-alignment? Why were the leading belligerent states willing to accept the inclusion of a “neutrality clause” in the Common Peace of 371? These questions have not been asked by historians of international law, and the answers provide a far more complex and sophisticated picture of interstate relations than has so far been available.