The thesis aims to undertake a critical discourse analysis (CDA) of the EU discourses regarding two different enlargements and seeks to discover the identity constructions underlying such EU discourses. The two different cases of enlargement concern Turkey- whose candidacy is provoking a considerable degree of controversy and debate in Europe today- and the countries of eastern europe, who have already recently acceded to the European Union. The Vienna School of CDA, grounded in post-positivist theories of international relations is used to deconstruct and understand how Europe constructs its identity with respect to its varying degrees of Others today.