The astonishing sequence of events during the past twelve months which have completely turned Eastern Europe upside down and mark the beginning of a new era of which nobody yet knows the outlines, has turned out to be of crucial importance for the future of the European Communities as well. One of the international fora where this is obvious, is the Conference on Security and Cooperation in Europe. With Soviet President Gorbachov calling for a follow-up Conference this November, American President Bush willing to give Western Europe -read the E.C.- primary responsibility for the economic resurrection and political integration within the West of Eastern Europe; West German Chancellor Kohl totally preoccupied by German unification, British Prime Minister, Thatcher, and French President, Mitterand, unable to give Western Europe the lead, necessary and desired, the European Communites have a unique political opportunity to take some decisive steps towards the proclaimed ultimate goal of a European Union by further tightening the Communities and enforcing their autonomous role, inter alia within the CSCE. At the same time, those steps not only seem legally desirable, but e.g. with respect to that same CSCE, perhaps also necessary for purposes of international law!