After the dispersion of the Soviet Union, the European Union embarked upon an intense relationship with the Central and Eastern European Countries. The transition into capital market and democratization of these countries had been supported by the Ministers of Foreign Affairs at the beginning of 1989 before the collapse of the Soviet Union System. The European Agreements were signed between the EU and Hungary, Poland, and Czechoslovakia on December 16th, 1991. 10 Central and Eastern Europe Countries became the members of the EU on May 1st, 2004. With the accession of Bulgaria and Romania into the EU on January 1st, 2007, the number of the EU member countries reached up to 27, and finally extending to 28 with the membership of Croatia to the EU on July 1st, 2013. Removing the Western Balkan States, Serbia, Montenegro, Albania, and Bosnia and Herzegovina from the scope of external relations, the EU included these countries in the enlargement process in 2005.The European Commission has determined 2014 enlargement policy priorities as dealing with the fundamentals on preferential basis. In this context, the developments in the Balkans will be closely monitored within the scope of a new approach giving priority to the superiority of law. The enlargement process of the EU towards the Balkans and whether or not the Western Balkan States will join the Union will be analyzed.