Translate the following English sentence to French:
"That said, from now on, we who are already in the Union must set out to explain the coming great enlargement better and give the citizens of our countries better information about it."
Cela dit, nous devrions aussi, nous, dès maintenant, au sein de l'Union, nous attacher à mieux expliquer, mieux informer les citoyens de nos pays au sujet de ce grand élargissement qui se prépare.