The Turkish proposal of a Caucasus Stability and Cooperation Platform (CSCP), and its impact on existing EU initiatives covering the same region, represents a challenge for the future shape of the European neighborhood. This article analyzes the evolution of the CSCP since its launch in summer 2008 until now and presents the platform’s approach and main ideas. A core question will be whether the Turkish proposal will be complementary to or in competition with other European initiatives such as the Eastern Partnership or the Black Sea Synergy. Different stakeholders’ perceptions of the CSCP will also be outlined. Finally, an outlook will be given which will explore Turkey’s role for the stability at the EU’s south-eastern borders as well as its impact for the European Neighborhood Policy.