Sanctions were supposed to have been the crucial element in South Africa's isolation, they were supposed to have blocked 75 % of coal exports and South Africa is supposed to have collapsed for that reason. ###>Les sanctions économiques auraient dû être la clé de voûte de l'isolement de ce pays, elles auraient bloqué 75 % de l'exportation du charbon et l'Afrique du Sud aurait dû capituler.