After the collapse of Soviet Union the three new independent states of South Caucasus (Armenia, Azerbaijan and Georgia) became one of the most important regions in the East Europe. The interest of the European Union to this region started in the early 1990s. With help of UN, OSCE, Council of Europe and NATO, as well as the Commonwealth of Independent States and GUAM, EU promoted two kinds of security in this region, such as external and internal security. External security is influenced by geopolitical rivalries and future relations with regional actors and internal security is threatened by political tensions and separatist conflicts. In my thesis I wanted to show work and actions of the ENP and its advantages for the ENP partners on the face of the South Caucasian stats focusing on Azerbaijan as a case study. The aim of my thesis is to analyse the incidence in the three South Caucasian countries (Armenia, Azerbaijan and Georgia). This paper is divided to three paragraphs which are in its turn explaining ENP separately.