The Great Illusion is a book by Norman Angell, first published in Britain in 1909 under the title Europes Optical Illusion. <p> According to John Keegan Europe in the summer of 1914 enjoyed a peaceful productivity so dependent on international exchange and co-operation that a belief in the impossibility of a general war seemed the most conventional of wisdoms. In 1910 an analysis of prevailing economic interdependence, The Great Illusion, had become a best-seller; its author Norman...