On 13 March 1948, in Luxembourg, Paul-Henri Spaak, Belgian Prime Minister and Foreign Minister, delivers an address during which he outlines the scope of the Marshall Plan and its political and economic implications for Western Europe.

On 4 April 1949, in Washington, Paul-Henri Spaak, Belgian Prime Minister and Foreign Minister, gives an address at the ceremony to mark the official signing of the North Atlantic Treaty.

On 3 March 1948, Belgian Prime Minister Paul-Henri Spaak delivers an address to the Belgian Lower House in which he gives his opinion on the current conflict in Greece.

On 26 August 1955, with a view to the Noordwijk Conference, Auguste Vanistendael, Secretary-General of the International Confederation of Christian Trade Unions (ICCTU), forwards to Paul-Henri Spaak, President of the Intergovernmental Conference established by the Messina Conference, a letter in which he outlines his hope that the trade unions will be invited to take part in the work of the Spaak Committee.

In February 1950, in the light of US criticism of the slow progress of the European integration process, Paul-Henri Spaak, President of the Consultative Assembly of the Council of Europe, outlines the reasons for certain difficulties and emphasises the importance of intensifying efforts for the establishment of a united Europe.

On 21 November 1961, during an address given to the National Press Club in Washington, the Belgian Foreign Minister Paul-Henri Spaak draws attention to the issue of settling the status of Berlin.

On 3 June 1961, Paul-Henri Spaak, Belgian Foreign Minister, holds talks with Eugène Schaus, Luxembourg Representative to the European Communities, on European political cooperation.

On 26 March 1957, the day after the signing of the Rome Treaties, Paul-Henri Spaak, Belgian Foreign Minister and President of the Intergovernmental Conference on the Common Market and Euratom, delivers an address at the seat of the Banco di Roma in which he outlines the development and the economic and political implications of the revival of European integration.

In April 1955, Paul-Henri Spaak, Belgian Foreign Minister, publishes an article in the magazine Écrits de Paris in which he shows that the revival of European cooperation is necessary for peace and prosperity in Western Europe.

Paul-Henri Spaak, Belgian Foreign Minister, responds to General de Gaulle’s veto on the United Kingdom’s accession to the Common Market, announced on 14 January 1963.