The following master thesis deals with the relations between the European Union (EU) and Turkey. The Turkish efforts of becoming a member of the European Community already had their origin in the 1960s, nevertheless the country still hasnt finished its accession process. Since the Ankara Agreement 1963 the de-velopment of the Turkish approach towards Europe is characterized by ups and downs. In this regard military coups in the 70s and 80s should be mentioned, which led to partial abruptions in Turkey-EU relations. On the other hand Turkey managed to accomplish diverse reforms concerning economic, political and judi-cial modernization processes in recent years. The EU honored these achieve-ments by initiating accession negotiations in 2005. Nevertheless, at the present time, the development of the negotiations proceeds protracted due to consecutive deficits of Turkish human rights and rule of law.Nowadays Turkey finds itself in a strategically important position. With its borders to regions known for their critical political situation, for example Syria with the on-going civil war in connection with the current refugee crisis or Iraq with increased terroristic activities, Turkey has to react responsively to these incidents. At the same time the European Union, formerly established as a peace project which managed to successfully unite the European regions, is confronted with se-vere challenges. On the one hand, Europe still suffers from the consequences of the economic crisis 2008/09 with massive debts of certain countries, on the other hand Europeans demand that the Union deals properly with the current inflow of refugees.Globalization in connection with the actual worldwide occurrences demonstrates a certain dependence of the EU on Turkey and the other way round. Due to this fact the main objective of this thesis is to identify the sectors crucial for the relations between these two actors. Hence, analysis based on the parameters economic relation, energy supply, safety policy and internal/external platform will enable an overall picture of the two actors ties. Furthermore, the question of which form of European Integration related to Turkey would fit best to satisfy the interests of both players will be put in the spotlight within this thesis.