Translate the following English sentence to French:
"The success of this is bound to involve a need to strengthen decision-making mechanisms and institutional structures relating to the common foreign and security policy, so as to secure better coordination between instruments of development policy and instruments of foreign policy."
Son affirmation suppose forcément un renforcement des mécanismes de décision et des structures institutionnelles des moyens PESC, qui permettent une meilleure articulation entre les instruments de la politique de développement et les instruments de la politique extérieure.