translate English to French: He emphasized that the three pillars were mutually reinforcing, and that while preventive and assistance measures were much preferred, collective measures under Chapter VII of the Charter of the United Nations could not be ruled out.
Ces trois piliers, a-t-il souligné, se renforçaient mutuellement et, si les mesures de prévention et d'assistance étaient privilégiées, on ne pourrait ignorer les mesures collectives adoptées en vertu du Chapitre VII de la Charte des Nations Unies.