Has the European Community succeeded in achieving its goal of economic and political integration? Explain.

I would say that it has only succeeded to a certain
degree.  Recent events show us that it is not fully
integrated.

I think that you can argue that the EU has
integrated to a great degree, especially economically.  They have created a common
currency and they have so much of a common market that there are essentially no barriers
between countries.  This is a remarkable achievement.

But
the recent problems with Greece show that this integration is not complete.  Some
countries have much weaker economies and have governments that are much less willing to
push for reforms than other governments.  When these "lower performing" countries get in
trouble, the other countries (notably Germany) do not really want to sacrifice to help
them out.  This shows that the various countries do not yet see each other as "self." 
They still think of themselves as different countries and do not want to sacrifice for
one another.

This shows that they are not completely
integrated.