Can the European Union be a pole in a multipolar world?

Can the EU serve as a pole in a multipolar, interdependent international system? The EU will face three particular challenges operating in such a system: the challenge of re-establishing credibility after the euro crisis; the ever-present challenge of achieving unity among the member states; and the challenge of adapting foreign policy behaviour to match the new international environment. There is a risk that the EU could slide into irrelevance.