Translate the following English sentence to French:
"However, I believe that the repeated failure to comply with previously concluded legal agreements, combined with the accumulated frustration at non-compliances in other areas, could become a political issue which might prejudice the peace process itself."
Pour ma part, j'estime cependant que le non respect réitéré de mesures juridiques préalablement adoptées, auquel vient s' ajouter la frustration accumulée résultant de manquements dans bien d'autres domaines, pourrait devenir un élément politique entravant le processus de paix.