The end of cold war influenced the security environment of Europe. Today the concept of security is defined wider than before and as such an important debate is now under way in international security theories. Integrationist approach to security versus neorealism is constituting the core of this debate. With a wider definition of security European Union’s role has also an increasing importance. Yet, the EU is actually at the point of crucial choice between an ‘integrationist approach to security’ and ‘traditional realist/neorealist thought’. The result of this choice will determine the future of European security. In order to maintain its growing role in the European security system, the EU should refrain from block politics and from creating new confrontations in Europe. Please click here to read the text in full.