The Impact Of Sweden's Accession To Nato On European Security

The Nordic region has long been considered a strategically significant area in the framework of regional and international security due to its vital geographic location, rich natural resources, and its traditional role as a bridge of balance between East and West. With the rise of security threats in Europe especially following the outbreak of the Russia–Ukraine war, the need to reassess the defense policies of the Nordic countries has become increasingly apparent. In this context, Sweden’s accession to the North Atlantic Treaty Organization (NATO) marked a historic shift in its traditional policy of military neutrality. This research examines the concept of military alliances, with a particular focus on NATO its establishment, member states, functions, and organizational structures. The study also    traces the historical development of Sweden, from its founding and independence to its transformation and eventual accession to NATO. Emphasis is placed on the dimensions of this shift and its impact on the structure of European security, illustrating how Sweden’s membership has contributed, first, to strengthening NATO’s defense capabilities, and second, to enhancing the security posture of the Nordic region. At the same time, the research reviews the challenges arising from this accession, highlighting both the opportunities for bolstering collective security and the risks associated with escalating polarization and heightened tensions with Russia.