On 15 December 1955, Paul-Henri Spaak, Belgian Foreign Minister, delivers an address to the Belgian Senate in which he comments on the outcome of the Paris Agreements restoring the sovereignty of the Federal Republic of Germany (FRG) and supports the establishment of a free trade area in Europe.

On 21 October 1955, Paul-Henri Spaak, Belgian Foreign Minister, outlines to the Consultative Assembly of the Council of Europe the meaning and the political scope of his task as Chairman of the Intergovernmental Committee responsible for laying the foundations for the drafting of the EEC and Euratom Treaties.

At the signature of the North Atlantic Treaty on 4 April 1949 in Washington, Paul-Henri Spaak, Belgian Prime Minister, delivers a speech in which he stresses the importance of NATO in ensuring world peace.

In 1956, Paul-Henri Spaak, Belgian Foreign Minister, delivers a lecture to the members of the Royal Belgian Union in Luxembourg, during which he discusses, at length, the economic and political situation in Europe and the arguments in favour of a revival of European integration.

On 12 July 1957, Paul-Henri Spaak, the Secretary-General of NATO, speaks to eminent figures at the Municipal Theatre of Luxembourg and presents the Atlantic Alliance as a consequence of the Soviet Union’s foreign policy since the end of the Second World War.

On 29 January 1963, during the 17th ministerial meeting between the Member States of the European Economic Community (EEC) and the United Kingdom, the Belgian Foreign Minister, Paul-Henri Spaak, criticises the French veto of the United Kingdom’s application for accession to the European Communities.

On 14 January 1964, addressing the Consultative Assembly of the European Council, the Belgian Foreign Minister, Paul-Henri Spaak, challenges the idea that the Community of the Six is a failure and calls for enhanced European unity.

On 4 September 1954, Paul-Henri Spaak, Belgian Foreign Minister, gives an account of the first 10 years of the customs union between Belgium, Luxembourg and the Netherlands. He stresses that this is merely one intermediary step on the road towards a united Europe.

On 25 March 1957, at the ceremony held in Rome to mark the signing of the Treaties establishing the European Economic Community (EEC) and the European Atomic Energy Community (EAEC or Euratom), Paul-Henri Spaak, Belgian Foreign Minister and President of the Intergovernmental Conference for the Common Market and Euratom, delivers an address in which he emphasises the historic significance of the event and pays tribute, in particular, to those who worked before him towards a united Europe. In the Belgian Delegation, the following may be seen (from right to left): Pierre Staner, Joseph Van Der Meulen, Robert Rotschild, Albert Hupperts, Roger de Staercke together with Ernst Albrecht, Pierre Uri, Michel Gaudet, Hubert Ehring, Pierre Bourguignon, André Dubois, Christian Calmes and Giulio Guazzugli.

On 9 September 1944, Paul-Henri Spaak, Belgian Foreign Minister, officially informs Belgian diplomats of the conclusion of a transitional agreement on a customs union between the Governments of Belgium, Luxembourg and the Netherlands.