For Turkish scholars, understanding especially the last decade of Turkey’s international politics has been a great challenge. Answering fundamental questions, -and many others-, requires collection of reliable, complete and uniform data and interpreting them on conceptual terms. The purpose of this thesis is to understand and explain Turkey’s foreignl affairs in a holistic way and offer a homegrown model based on original data. Building an original event dataset, this thesis accounts for the empirical observations made out of Turkey’s international practice and conceptualizes it as a complex system. It accounts for foreign policy change in complex systems, introduces concepts such as domestic responsivity, domestic, international nodes as well as intermestic and international nexus, and puts forward a helical model of power accumulation, as an outcome of successful foreign policy change.