This paper aims to study the European Union s energy policy, understanding the IO’s strategies and objectives, both internally and externally. First, it will be presented the history of the formation and structuring of the foreign policy of the European Union and its three main powers, showing that this process was based on the pillars of internal security and demonstrating the impacts and effects of this construction. Next, the research delves into three bases for understanding the EU s energy policy: the European Union s interdependence, securitization and autonomy strategies, and with this information, analyses the main characteristics of each of these three directions. Finally, official documents from the UE and their data are analysed to understand the current design of European energy policy, making it possible to observe that this scope follows only two pillars, efficiency and energy transition. Furthermore, the final part of the work seeks to draw a connection between the foreign policy of defense and security and the foreign energy policy of the European Union, based on the idea of Habermas and Derrida, developed in the article February 15, or What Binds Europeans Together.