It would be wise for ALL Christian countries NOT to join to the European Union (or to withdraw if already a member). The EU is a building block to an anti-Christian global government. If I were a Greek citizen, I would lobby for Greece to withdraw from EU, and give it's seat to Turkey (I say this somewhat sarcastically, not having much use for the Turks). You may remember that, within the last year or so, both the Pope and the Patriarch of Constantinople (not Istanbul) appealed to the EU to give official recognition to the Christian patrimony of Europe, and this request was rejected by EU leadership. Now, the EU is dictating to member nations that they MUST facilitate the easy travel, and other legal favors extended to "same sex couples" by their home member-nations. It's easy to see where this is leading, and that is definitely not in a Christian direction.
Fr. Deacon Robert