Translate the following English sentence to French:
"As has been said before, the States must overcome their individual tendencies - which often reflect their concerns about former colonial relationships or other factors - and commit themselves to a common European project."
Les États doivent, on l'a dit, faire fi de leurs penchants particuliers - qui reflètent souvent de vieilles préoccupations de type colonialiste, ou d'autres raisons encore - et s'engager en faveur d'un projet européen commun.