I think you should read about the 'Macedonia' issue since it's clear that you have no idea of current developments.
I'll give you a little insight (you are free to check the veracity of my claims):
'Macedonia' was recognised by it's constitutional name by the US in return for political and regional favors towards the US by 'Macedonia'.
Immediately, Greece protested and threatened to VETO Former Yugoslav Republic of Macedonia's (FYROM) inclusion into the EU. The US has agreed to bring the two sides into negotiations supervised by the UN to agree on a mutually-acceptable name.
Some facts for you (please check them if you wish):
Greece provides FYROM with ALL her power requirements and can switch off the lights anytime....
Greece owns most banks in FYROM and can apply financial pressure to FYROM economy, if need be....
Greece supplies FYROM with Greek arms and armor supplies to keep at bay the Albanian independence ideas within FYROM.
Greece holds the ticket for FYROMians to enter the EU.
All the above have 'persuaded' FYROM to come to the negotiating table to agree a name for 'FYROM'.
Here is a link:
"The Greek government supports the negotiations on the issue of the FYROM name and participates in them with an accelerated pace to agree on a mutually acceptable name within the framework of the United Nations.
Acting government spokesman Vangelis Antonaros made the comment mentioned above responding to a question by a reporter on whether an agreement is imminent on the issue of the FYROM name.
To the question whether there are prospects that allow for optimism, Mr. Antonaros referred to the consultations held by Deputy Foreign Minister Yiannis Valinakis in New York and suggested patience stating that 3 years of inaction have passed during the previous government. He added that the current government has accelerated the pace of negotiations stressing that he does not want to forejudge the negotiations' outcome.
http://www.mpa.gr/article.html?doc_id=516082