The impact of possible scenarios of Saudi-American military cooperationon Iran's interests in West Asia

After World War I and II, with the aim of establishing a new world order and creating a new Middle East and reducing the authority of the Middle East against the Western world, the main players were the United States, England, and France. The 21st century witnessed many developments, including the collapse of regional governments, the active presence of the United States with the aim of engineering democracy but hegemony and becoming the main actor due to its dominance over development resources (oil, water, natural raw resources). In the meantime, some countries in the region, including Saudi Arabia (the political system of the kingdom), due to their historical enmity and inability to develop domestically and increase their defense-military power with extra-regional actors (America), developed cooperation scenarios with the aim of confronting Iran. As an important and strategic regional power, against the game of the first world order (America) with Saudi Arabia in the Middle East, Iran puts its national security interests at the top of its priority. Based on this, the main goal of the current research is to study possible and desirable scenarios of Saudi Arabia's arms cooperation with the United States of America, emphasizing the security and national interests of Iran. The research method is a historical-analytical study and the security order study unit of the West Asian region has used first-hand documents, scientific works (articles and books) as well as authoritative organizational documents to answer this question in the period of 2018-2019.