In 1930, Aristide Briand, French Foreign Minister and President of the Council under the Third Republic, puts forward a plan for a European federal union.
Chef de la Section française de l'Internationale ouvrière (SFIO) et éditorialiste influent du journal Le Populaire, Léon Blum défend l'idéal de l'unité européenne que doit, selon lui, poursuivre le socialisme international.
On 30 August 1948, the weekly journal Paraat, mouthpiece of the Dutch Socialist Party, emphasises the role of Socialism in the process of European unification.
On 20 November 1948, the Luxembourg daily newspaper Tageblatt deplores the influence of money, power and dictatorships in a Western world in full decline and advocates a return to human values.