The decline of American power in the defense thought of Imam Khamenei

With the collapse of the former Soviet Union, a unipolar system led by the United States was formed at the international level. In this period of time, American foreign policies developed from the expansion of military bases in different regions, intervention in civil, regional and proxy wars, etc. The formation of emerging powers such as China and Russia, successive failures in the countries of the West Asian region, as well as the inability to confront Iran as an influential political and security country in the region, became the grounds for the decline of American power at the international level. This research is a descriptive-analytical study and the data collection method is library. In this research, we will discuss the decline of America in the West Asian region and the role of the Islamic Revolution in the defense thought of Imam Khamenei. The findings of the research show that after the Islamic revolution, the Supreme Leader expressed the theory of resistance and opposition to the hegemonic policies of America from Iran, and this policy was implemented in Islamic Iran. In this regard, the Islamic Republic tried to expand the theory of resistance. The Imam and the Supreme Leader played an irreplaceable and fundamental role in shaping the theory of resistance and people's convergence with it, and ultimately they shaped the causes of the decline of American power at the regional and international level.