On 27 August 1947, Henri Genet, the Swiss President of the Central Committee of the Union of European Federalists (UEF), officially opens the Montreux Congress and hopes that this first meeting of federalist activists will result in close cooperation between European countries.

During the Montreux Congress from 27 to 31 August 1947, the Swiss writer, Denis de Rougemont, describes the spiritual foundations of federalism, citing the Helvetic Confederation as a possible model.

At the Montreux Congress on 27 August 1947, the Union of European Federalists (UEF) adopts a resolution setting out its position on and its objectives as regards economic policy.

During the Montreux Congress from 27 to 31 August 1947, the Union of European Federalists (UEF) adopts a resolution on general policy which sets out the objectives of European federalism.

During the Congress of the Union of European Federalists (UEF) held in Montreux from 27 to 31 August 1947, Duncan Sandys, former British Minister and founder of the United Europe Movement in May 1947, delivers an address on European unification.

At the first Congress of the Union of European Federalists (UEF) held in Montreux in August 1947, Henri Brugmans gives an address describing the foundations and aims of European federalism.

Meeting in Montreux in August 1947, the Union of European Federalists (UEF) concentrates on the division of economic power between the Member States and the Federal Union.

Meeting in Montreux in August 1947, activists of the Union of European Federalists (UEF) consider the economic benefits of establishing a European federation in terms of reducing costs and increasing wealth.

On 4 September 1947, the French daily newspaper Le Monde comments on the debates held in Montreux by the federalist movements and singles out the differences in approach taken by the world federalists and the Union of European Federalists (UEF).

The Frenchman André Voisin, founder of the Fédération European movement in 1944, gives his impressions of the federalist Congress held in Montreux to his readers.

At the Montreux Congress, the Swiss writer and staunch federalist Denis de Rougemont strongly criticises the scepticism or even the hostility of a swathe of public opinion which, in his view, produces knee-jerk reactions to plans for European unification.