Southwest Asia has played a central role in the geopolitics of the global system since the Cold War years. All characteristics of a geopolitical region can be observed in Southwest Asia. In this geographical area, signs of challenge, crisis, conflict, and competition for power expansion among regional actors and significant powers are expanding. The security environment of Southwest Asia is linked with many indicators of "geopolitics of crisis" and "geopolitics of chaos." Given these conditions, as well as the political and social challenges and the geopoliti-cal conflicts and security concerns in the region, the actions of actors—especially the emer-gence of centrifugal actors in Southwest Asia—will also change. Accordingly, it is predictable that the states of Southwest Asia can achieve their goals under conditions of stability and se-curity. As a result, the national goals and interests of the Islamic Republic of Iran can also be better secured under such conditions. In other words, the agent's actions in this region influ-ence the security environment of this area. The aim of this study is to explain the actions of the agents and examine the impact of their actions on the processes of the security environ-ment. The study's findings show that one of Iran's security priorities in Southwest Asia is to prevent the increase of influence by regional and extra-regional powers in this area and reduce it. In this regard, Iran seeks to tie its interests to the region by creating economic and cultural relations that ensure mutual and multilateral benefits through appropriate and reasonable se-curity policy.
