Ladies and gentlemen, I would like, first of all, to thank the organizers - the Open Ukraine Foundation and the Chatham House - for inviting me to participate in this event. Security is always a highly topical and challenging theme to discuss, and the moment of our debate - just a few days before major security events such as the NATO Lisbon Summit, which is going to adopt its new Strategic Concept, and the OSCE Summit in Astana - is particularly relevant. Distinguished audience, Currently, the international arena faces threats to the peace and security that are different in nature and complexity compared to those from just two decades ago. International terrorism, cyber attacks, piracy, to name just a few of them, have something in common: they are transnational. Ostensibly, cyber attacks and energy insecurity are able to paralyze a country without moving a single soldier. At the same time, let us remember that recently we have witnessed disruptive events, such as the crisis in Georgia, which had negative impact both on the countries in the region and on the Euro-Atlantic security, reminding us that even "frozen" conflicts can become "hot" again. That means that we face new challenges as well as old. Furthermore, all these point to the idea that security can no longer be reduced to its military dimension. It embraces political, economic (energy for example), social, environmental, as well as defense components. It is, therefore, more difficult to find a comprehensive and unique conceptual framework to deal with all these parallel and yet interacting phenomena. Every single one of which may have its own theoretical approach, inducing a sentiment of fragmentation. Even more difficult is, in practice, to convene a coherent system of security arrangements to deal with all these factors. Nevertheless, we, in the Euro-Atlantic area, have to a large extent managed to follo