Why would the EU dissolve if the Euro collapsed? Only 17/27 countries in the EU are in the Eurozone. It would be significantly more complicated to dissolve the

Why would the EU dissolve if the Euro collapsed? Only 17/27 countries in the EU are in the Eurozone. It would be significantly more complicated to dissolve the whole European Union and dealing with a political and legal mess that would ensue. Dissolving the Eurozone would be comparatively easy. Also the concept that somehow "poorly run smaller economies" were draining the resources of the "larger economies" has no basis in reality. It doesn't take a lot of research to find out who benefited the most from the Euro. Hint: not any the "poorly run smaller economies".