Efremoff, J. Keywords: International conciliation | Mots clefs: Conciliation internationale | ABSTRACT Jean Efremoff writes in the introduction to his course in 1927 that Europe is in an urgent need for peace and security to heal the still bleeding wounds of the Great War. However, he continues, the hatred of nations and of classes, revived by the War and its consequences, is still too acute. It is done by reconciling the divergent aspirations and opposing interests of the peoples who inhabit it that Europe…