After the collapse of the USSR, the South Caucasus region appeared in the sphere of geopolitical and geo-economic interests of the EU. Among the newly independent countries of the South Caucasus, Armenia, Georgia, and Azerbaijan declared the establishment and deepening of relations with the European structures, particularly the European Union, as a foreign policy priority. The partnership formed in the early 1990s had several milestones in the form of the Partnership and Cooperation Agreements, the European Neighborhood Policy and the Eastern Partnership Initiative. The history and development trends of these processes are comprehensively presented in this monograph. The book can be useful to diplomats, political scientists, historians and specialists interested in the problems of the integration of post-Soviet republics into the European structures in general.