ABSTRACT
International law principles enable a rationalisation of the values to which the Union order aspires as a collective political and legal commitment amongst the Member States. The doctrine of Union law supremacy, which parallels that of international law supremacy, emphasises the overriding character of Union legal demands as a set of values and objectives over those of purely domestic origin. A common view that the Union legal order is sui generis or municipal in character fails to explain the directing character of the values underlying the Union project including its legal order.
