The political history of modern Europe may be seen in terms of continuous interaction between rivalling forms of internationalism and diverse kinds of nationalism. This book distinguishes, analyses and presents the different kinds and varieties of internationalist and nationalist ideology that have played significant parts in the international politics of the region, particularly since the Second World War. It indicates the origins of each pattern of thought, traces its development, brings out its relationship with other strands of thought and outlines its major political influences. The emphasis is on internationalist support for and nationalist opposition to the principal regional international organizations.