Is the European Union a peculiar political system or a very developed international organization?

The EU nowadays is a very powerful political actor and has a very big influence, not only in
Europe, but also in the rest of the world. Starting from a community for joint coal and steel
administration it developed further and further. Today there is a discussion among scholars about
the type of political actor the EU constitutes. Is it an international organization, a political system, a
supranational state or something completely new and incomparable. This paper wants to prove that
the European Union is not an international organization, despite having some of the appropriate
characteristics, but rather a political system. In order to achieve that it will try to define the terms
'political system' and 'international organization' and then evaluate if the characteristics of those
match with the European Union as a political actor.