Unless you're suggesting that being surrounded by the EU would be tantamount to a hostile siege, I don't see why geographic distance should rule out politico-economic alliances. Examples of successful alliances between distant states are numerous: South Korea-US, Hong-Kong-UK, Cuba-USSR (although that one fizzled under an American siege)... which brings us back to the question of whether the EU would effectively organise a siege? And your remark about peace isn't encouraging.

Turambar 08:25: I don't think Russia holds more of a promise for Serbia than the EU politically, economically or regarding rebuilding and long- term peace.