This is a comprehensive field research on the new dynamics of Turkish security policy. The book investigates the underlying reasons for Turkish-Iranian security rapprochement between 2003 and 2010, and attempts to discover whether the ongoing process indicates Turkey’s realignment in the international system. It employs a rigorous qualitative analysis to explore the perceptions of the key decision makers on three major security policies: counterterrorism, nuclear proliferation and energy security. It counterposes the threat perceptions of the pro-status quo and revisionist elites. The data has been collected through extensive elite/expert interviews and content analysis of the media.