In 2019, the Baltic states passed the 15-year mark of membership in the European Union. This anniversary was not celebrated in the Baltic states or in the EU and did not attract attention of other countries. After the collapse of the USSR in 1991, the Baltic states chose not to join the CIS, but to join the EU. For Russia, the Baltic states are immediate geographical neighbours, which generate conflict in bilateral relations. The purpose of the study is to examine how the Baltic states' membership in the EU affected the main characteristics of their development and to what extent anti-Russian orientation of the Baltic foreign policy is due to EU membership. Achievement of this goal is seen through the solution of two tasks. The first is to study the current state of the Baltic economies. The second is to analyze the Baltic states conflict in relations with Russia within the EU. For the study, the method of comparing the statistical data of the EU for 2004-2019 was used in relation to the Baltic countries, as well as a comparison of the contractual obligations of relations between Russia and the EU with the practice of the Baltic countries. The results of the study show that the Baltic economies, despite long enough EU membership, remain subsidized. Conflict between the Baltic states and Russia does not directly come from the legal basis of their membership in the EU but is mostly due to several other external factors.