For many years, security studies were dominated by the theories which explained security predominantly by relying on military-political aspects. Under the veil of fear from the constant threat of the outbreak of a direct conflict between the Great Powers, it is often overemphasized undoubtedly great importance of the Great Powers and their impact on security dynamics of different regions, with almost total disregard of local actors and the way they shape the same region. In this regard, Regional Security Complex Theory (RSCT) represents a significant step forward in the current international security studies, because it sets up regional subsystems (complex) as the referent object of security. This paper will analyze the security problems Macedonia is faced with within the regional security subcomplex Western Balkans (RSSWB). However, the goal of this research will not only be the identification, description and mapping problems present in this subcomplex, which affect the security of Macedonia, but it will be issued its position within this sub-complex, where the method of scenarios will be used to represent possible paths of movement of Macedonia which will largely define whether it will be considered as a factor of stability or instability in subcomplex Western Balkans. Finally, the research will include the sustainability of the idea of the Western Balkans as a permanent regional security subcomplex, given the complexity of the relations of Macedonia with Greece, which is not part of RSSWB.