In which way does the creation of the European Union differ from the unification of states?

In which way does the creation of the European Union differ from the unification of states?

FULL QUESTION In which way does the creation of the European Union (from 1957 onwards) differ from the unification of states (such as Germany or Italy)? Identify the main ideologies and political actors driving the creation of the European Union as well as the methods which were used to create this polity More than 6 scholar articles Harvard referencing Due in 7 hours