The custom convention between Belgium, Luxembourg and the Netherlands enters into force.
The Western Union Treaty (Brussels Treaty) is signed by Belgium, France, Luxembourg, the Netherlands and the United Kingdom.
The Organisation for European Economic Cooperation (OEEC) is created to coordinate the Marshall Plan.
Fostered by the International Coordination of Movements for the Unification of Europe Committee, the Europe Congress meets in The Hague, The Netherlands. It is chaired by Winston Churchill and is attended by 800 delegates. Participants recommend that a European deliberative assembly and a European special council be created to take charge of preparing political and economic integration of European countries. They also recommend the adoption of a human rights charter and the creation of a Court of Justice to ensure the respect of such a charter.