Constitutional natureFurther information: Treaties of the European UnionThe classification of the European Union in terms of international or constitutional law has been much debated, often in the light of the degree of integration that is perceived, desired, or expected. Historically, at least, the EU is an international organisation, and by some criteria, it could be classified as a confederation; but it also has many attributes of a federation, so some would classify it as a (de facto) federation of states.[72][73][74] For this reason, the organisation...