Translate the following English sentence to French:
"(FR) The Lomé Convention, on which the entire structure of relations between the European Union and the 71 African, Caribbean and Pacific countries rests, is still the most efficient and ambitious development tool in north-south relations."
La Convention de Lomé, sur laquelle toute l' architecture des relations entre l' Union européenne et les 71 États d' Afrique, des Caraïbes et du Pacifique, constitue, à ce jour, l' outil de développement le plus performant et le plus ambitieux dans les relations Nord-Sud.