The article discusses the activities carried out by the Russian Federation to destabilize Euro-Atlantic security in the Baltic Sea region. Particular attention was paid to the strategy of the war of the new generation, characterized by the state’s activity on many fronts, with the use of political, social, military, and economic methods. In the case of Russia, the purpose of these methods is to regain geopolitical control over the Baltic States and to rebuild the sphere of influence from the times of the Soviet Union. The consequence of this is the increased sense of threat among the countries: Lithuania, Latvia and Estonia. The aim of the article is to present Russian pressure on the national security systems of the countries of the Baltic Sea region.