欧州防衛共同体
Mendès France hoped that the Radical Party would become the party of modernization and renewal in French politics, replacing the SFIO. An advocate of greater European integration, he helped bring about the formation of the Western European Union, and proposed far-reaching economic reform. He also favoured defence co-operation with other European countries, but the National Assembly rejected the proposal for a European Defence Community, mainly because of misgivings about Germany's participation.