"The final chapter of The Great Illusion presents a convincing plea for a change in foreign policy from that of a war policy to one of international cooperation and peace. If this is not made, war, he says, will be inevitable. The fact that we are living in a world of international interdependence makes it imperative that we organize the international community of nations accordingly, basing the community on the common interests which bind nations together, relinquishing the principle of isolated national defence, providing collective security through common effort by erecting an international authority which can replace the prevailing international anarchy."