When Marshal Petain officially proclaimed the collaboration policy with Nazi Germany in June 1941, he justified it to the French people as an essential need for the New European Order and to keep the unity of France. Therefore, much of WW2 French propaganda was pro-European, exactly as German propaganda was. Therefore, a group called "Group Collaboration" had been established during the war in France, and led a myriad of conferences promoting Pro-Europeanism. The very first time the expression "European Community" was used was at its first sessions, as well as many conferences and guests lectures sponsored by the German government, propagating French-German reconciliation, French renewal and European solidarity.