Translate the following English sentence to French:
"At a forthcoming review of these programmes, it ought to be established that the EU' s efforts are to be concentrated upon cross-border tasks and adapted to the possible enlargement of the EU."
À l'occasion d'une prochaine révision de ces programmes, l'UE devra axer ses efforts sur les tâches transfrontalières et les actions menées devront s'accommoder d'un élargissement de l'UE.