The article aims at showing the international roles of the European Union in the security area. It focuses on methods and tools used by the EU to build its power in the international arena. It also specifies the selected and imposed roles played by the European Union towards the priority geostrategic regions. The author also tries to show how the EU is using its potential to build stability in the world and promote its fundamental principles (democracy, human rights, good governance). The analysis of actions taken by the most important actors in the international arena allows to draw a conclusion that nowadays, an intricately woven network of international political and economic ties becomes the guarantor of security. In the European tradition, especially in Western Europe, there exists a specific idea to build relationships, which can be called a variety of network connections. The idea of Europe to maintain security, at the beginning between several Western countries, and then widening the area, going out far beyond the framework of the European Union, being a gradual inclusion of more countries in the network of mutual dependences, starting from the economic ones. Economic dependence (or rather the benefits of trading profits) is the basis for this system. Gradually built economic common power was to become the main force inhibiting any attempt to destroy the existing order in Europe, favoring the EU’s development.