The relationship between Turkey and the European Union (EU) represents a wide range of concerns and motivations relevant to both and paves the way for political transformations and economic dense in the two political entities, directly impacting and revolutionizing the socio-cultural environment and laying the foundations of a fundamental movement in the ideological and existential determinations describing the central objectives and ambitions at all levels of their positioning as actors global and international which, in turn, directly influence internal policy and decision-making processes. The association between the two entities is a direct determinant of the increasingly relevant concept of regionalism in which mutual interests determine political and economic alignments between states characterized by integration within regions. Regionalism has become increasingly popular as states have realized that their interests are more closely linked to those of neighboring states, that their interactions are more frequent with closer neighbors, and that regional coordination is an effective method for protect their interests and promote the objectives of the community at the global level. level. However, the boundaries of these regions and their criteria for membership and exclusion are rarely presented in a natural and obvious way. Patterns of congruence, complementarity, and connection among states tend to overlap, complicating the task of defining a regional configuration in which member interactions are more intense and interests more convergent than between members and non-members. Emphasis on different communities of interest or patterns of interaction will produce different regional configurations. Thus, membership in the region is determined by its defining criteria, or those of the community...... middle of paper ......ture as much as the economy, and are based on the logic according to which the most culturally similar Turkey becomes to EuropeWorks Cité • Yesilada, Birol. (2002). “Turkey’s application for EU membership”. Middle East Journal, Vol. 56. No. 1. Publisher: Middle East Institute. • International Crisis Group. 2007. Europe Report No. 184. “Turkey and Europe: the way forward” • Wesley, Michael. (1997). “The politics of exclusion: Australia, Turkey and the definitions of regionalism”. The Pacific Review.• Commission of the European Communities, Communication from the Commission to the European Parliament: Enlargement strategy and main challenges 2009-2010, Annex 1. (Brussels: Official publications of the European Communities, 2009)• Commission of the European Communities, Report regular: Turkey 1999, annex 1. (Brussels: Official publications of the European Communities, 1999)