Context of Towards a European foreign policy : legal, economic, and political dimensions : records of a colloquium held by the Europa Institute of the University of Amsterdam on the occasion of its 25th anniversary, edited by Johan K. De Vree, Peter Coffey, Richard H. Lauwaars in collaboration with Max Jansen, Alfred E. Pijpers, and Edmond L.M. Völker ; with a preface by Hans van den Broek