THIS IS A SPECIAL ISSUE OF OUR JOURNAL AND IT IS THE outcome of a conference held at the Centre Européen de la Culture in Geneva. The Centre was founded in 1947 by Denis de Rougemont, the great Swiss writer, philosopher and European federalist, and directed by him until his death in 1985. Now it has been revived under the presidency of Professor Jacques Freymond, the best-known Swiss political scientist in the world of academia, and himself the author of many classic works on international politics. We want once more to thank the Centre, its present physically and intellectually indefatigable President and its expert staff.