At the 2008 Bucharest summit, Greece vetoed the Republic of Macedonia's invitation to join over the Macedonia naming dispute, however, NATO nations agreed that the country would receive an invitation upon resolution of the disagreement. Greece felt that its neighbour's constitutional name implies territorial aspirations against its own region of Macedonia. The Republic of Macedonia sued Greece in the International Court of Justice over their veto of Macedonia's NATO membership, citing their 1995 interim accord that allowed Macedonia to join international organizations under the name "the Former Yugoslav Republic of Macedonia", which is how NATO, with the exception of Turkey, recognized their bid. Greece counterargued that it was a collective decision of NATO not to invite the Republic of Macedonia, and therefore the interim accord signed between the two countries was not violated. The ICJ ruled in December 2011 that Greece was wrong to have blocked its neighbor's bid, finding them in breach of the agreement. Greece also blocked the Republic of Macedonia's start of negotiations on accession to the European Union over the naming dispute.