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Not only does Donald Kagan have a masterly grasp of the inner workings of the Peloponnesian War but the man can write! This isn‘t a work for the uninitiated, for that I‘d suggest his The Peloponnesian War. This is a work deconstructs the origins of the war. He puts forth his opinions of where others (most notably Thucydides) have gone wrong and why the war was not inevitable. A very compelling read that is both scholarly and readable.