Treaty of Paris (1815) notably Prussia, initially demanded that France cede significant territory in the East, rivalry among the powers and the general desire to secure the Bourbon restoration made the peace settlement less onerous than it might have been. The treaty was signed for Great Britain by Lord Castlereagh and the Duke of Wellington and by the duc de Richelieu for France; parallel treaties with France were signed by Austria, Russia, and Prussia, forming in effect the first confederation of Europe. The Quadruple Alliance was reinstated in a separate treaty also signed 20 November 1815, introducing a new concept in European diplomacy, the
Treaty establishing the European Defence Community 1952, with French support. The new EDC treaty was signed on 27 May 1952. Although with some doubts and hesitation, the United States and the six members of the European Community approved the Pleven Plan. This led the way to the Paris Conference, launched in February 1951, where it was negotiated the structure of the supranational army. Among compromises and differences, on 27 May 1952 the six foreign ministers signed the Treaty of Paris establishing the European Defence Community (EDC). Despite the central role for France, the EDC plan collapsed when it failed to obtain ratification in the French Parliament.