![Ukraine's Accession Poses a Unique Conundrum for the EU](http://carnegieendowment.org/images/article_images/GettyImages-EU-Ukraine.jpg)
This was originally published on Carnegie Endowment for International Peace - articles .
Never in its history has the union moved to admit a country that was in the midst of a major war and lacked NATO’s security guarantees.
This was originally published on Carnegie Endowment for International Peace - articles .