Various reflexes have been developed in order to preserve the idea system, namely Kemalizm and its basic principles, which emerged with the establishment of the modern republic. As a result of these reflexes, military-civilian relations in Turkish political life have become problematic. The most basic phenomenon that the essence in question caused is the desire of the military elites to establish an influence over the civilian political authority. This desire, which emerged in the name of protecting the official ideology and guarding the regime, led to the interruption of democratization efforts, the collapse of elected civilian governments, and the establishment of military or controlled administrations from the 1960s to the recent period. One of the attempts in question is the post-modern military coup that took place February 28, 1997. Although this coup is essentially a showdown with the government that resists the line internalized by the Republic, the actual actors in the process and the adopted forms of intervention have unique characteristics. In the guise of the National Security Council (NSC), the military elites played the leading and dominant role on February 28, which took its place in political life as a multi-actor military intervention. In this respect, the main purpose of the present study is to analyse the role of the National Security Council on military-civilian relations, as the catalyst force and the determining factor of the 28 February process.