Thucydides on International Law and Political Theory demonstrates that in classical times, certainly in the era of the Peloponnesian War, international law and strategy existed in an advanced form among the city-states of ancient Greece, and shows how the work of Thucydides, and, in fact, classical Greek international law and politics, have influenced aspects of modern international law and international politics. Iacovos Kareklas extensively analyzes Thucydidean political realism and indicates how it differs from modern realist and neo-realist theories of politics and presents that “just war” theory of the time of Thucydides formed the legal and political basis of contemporary kinds of military intervention. Further, inter-state treaties as listed in the work of Thucydides are categorized, interpreted and commented. The military Strategy of classical Greece and the role of religion in foreign policy decision making are also emphasized. This book is not designed to meet the taste of an immediate public, but was compiled to last forever.