Investigating the roots of the security crisis in Southeastern Iran is affected by the Pakistan

Throughout the life of political units, the relative stability of border areas has always been a challenging factor in maintaining the existence of countries, and even this issue can pave a way for the collapse of the system of government due to lack of proper planning and management. Because of its location in the critical Center of the Greater Middle East and its proximity to largely unstable countries, Iran has not been spared the destructive effects of cross-border threats to ethnic-religious issues, especially in the Southeastern part of the country. Drug trafficking - man and the phenomenon of terrorism and ethnic-religious extremism are seen. This article uses analytical-descriptive method and scientific sources while examining the border areas of the southeast of the country and its relationship with Pakistan and ethnic-religious issues between them .the question was about the growth of fundamentalist and religious extremist tendencies in Pakistan wether it can addresses the security challenges envisaged by regional and trans regional intervenors in the Southeastern region of Iran or not .This study shows that the crisis in geographical, political and economic spheres and the formation of ethnic-religious tensions, the growth of fundamentalism and Islamic radicalism and the involvement of supra-regional forces in Pakistan are directly related to security issues in the Southeastern region of Iran.