The main goal of this article is evaluating the impact of missile technology developments on Iran’s security- defense strategy. The Middle East security environment and major changes in great and regional powers attitudes toward Iran have influenced the security strategy of this country and have led to change in its defense policy by reinforcing military and missile capabilities. In this area, Iran’s main endeavor has been to localize the technology. In later decades, especially after the war with Iraq, Iranian missile experts have focused on the quality and quantity of the missile technology. The main criteria in the development of missile systems are the range and accuracy of missiles. The question that this article is trying to answer is what are the impacts of the missile technology developments on Iran security– defense strategy? As a hypothesis, this article argues that Iran’s missile capabilities in terms of range and accuracy have led to change in Iran’s security– defense strategy from frontier deterrence to regional deterrence

This research has been conducted with the aim of applying defense policy with defense strategy and military strategy. The research has been of applied type, and had been carried out via case and field study research method. The statistical community comprises 227 people, and the sample volume has been determined to be 68 people by using Cochran formula. Multilateral and capability-based defense policy is a guide as well as a framework for defense policy that leads to total capability-based defense authority and military power. Defense and military authority is achieved through the approach of offensive deterrence which is mysterious and based on intimidation. Defense policy helps create a low-risk security environment as well as convergence with other countries of the world through signing military treaties. Defense strategy prevents the formation of military threats and hard warfare by applying the components of national power. Military strategy contributes to how to organize armed forces and to choose warfare systems for carrying out the assigned missions. In addition to institutionalizing the culture of resistance, the value-based and human-centered defense policy boosts the spirit of fighting arrogance and Zionism.

Defense strategy of Islamic Republic of Iran, has the responsibility of selection of aims, tools, instruments, and defense methods for supplying national security of the country which can deter potential threats by application of factors of the national power create deterrence against potential threats and in the case of failure of the strategic deterrence, will defend from regional integrity, national security and principle merits and values of the Islamic system. The peripheral seas of the country, have effective dimensions in defense strategy which one of them is these principle and effective dimensions is military aspect of the sea that in defense and military strategies has a special status. Characteristics and advantages of the peripheral seas have placed Iran at the top position of the maritime, transitional and strategic countries. This paper tries to explain military status of the sea in the defense strategy of Islamic Republic of Iran and by explanatory and analytical ways provides the methods of establishment of its necessities.

This research entitled "the impact of south Caucasus geopolitical factors on the defense strategy of the Islamic Republic of Iran" after performing some theoretical and environmental studies of the south Caucasus countries aims to identify geopolitical factors related and affecting defense strategies in six dimensions of physical, social, cultural, economical, political and military, utilizing analytical methods. And then, in addition to consult some experts on the topic and defensive problems and obtaining their comments, the questionnaire was set and designed in order to obtain statistical society's comments. This questionnaire in the population of 50 people was fully issued and analyzed after receiving statistical society's comments, using statistical techniques and methods. So, following that, organization and evaluation of the research hypothesis was accomplished. At least, as a conclusion in response to the study question, geopolitical factors of the south Caucasus countries related to the defense issues in six dimensions which are effective in the defense strategy of the Islamic Republic of Iran, was determined in the form of 49 geopolitical factors.

The Oman Sea Basin and its surrounding states, including Iran, Pakistan, Oman and the United Arab Emirates, which are part of the Indian Ocean geostrategic domain, are a relatively unknown and neglected environment in various aspects including political, economic, cultural, geopolitical factors It is related to defense issues that the necessity of adopting a defensive strategy in the Oman Sea for the benefit of the nation is inevitable.   On the other hand, the formulation of a favorable defense strategy requires a detailed understanding of the geopolitical factors of this area, especially in the context of the geopolitical factors concerned and their impact on the country's defense strategy and relations with other players in the field. Therefore, in the present study, it has been attempted to use geopolitical, economic, cultural and military factors influencing the formulation of a descriptive analytical and applied method after conducting theoretical and environmental studies on the southeastern coast of Iran and the coasts of the Oman Sea countries. The defense strategy of the Islamic Republic of Iran was identified and after consulting with some experts related to the subject and obtaining their opinion, a questionnaire with 19 closed questions and one open ended question was designed and designed, then a research questionnaire among experts and community experts. The sample size of 34 individuals was estimated to be integer d.  In conclusion and in response to the research question, the most influential political, economic, cultural and military geopolitical factors of the south east coast of the country in the Oman Sea that influence the formulation of the Islamic Republic of Iran's defense strategy, in terms of their average priority and weight The effective political, economic, cultural and military geopolitical factors have been identified.

A The geopolitics of the Caspian Sea region after the collapse of the Soviet Union and replace the four newly independent country instead in this area, Have been changes. In this study, as »Caspian Sea geopolitical impact of military factors on the defense strategy of the Islamic Republic of Iran« is tried these developments, Geopolitics through the lens of military factors on the defense strategy is considered. Therefore, this study Application form After conducting theoretical studies and Ecology geopolitics of the Caspian Sea region have tried, Military factors related to geopolitics And effective defense strategy Islamic Republic of Iran exploration Then to confirm this and to determine role of factors (In the context of project opportunities, threatening, strengths and weaknesses) Two questionnaires were designed and set. The first questionnaire to confirm the geopolitical factors affecting military the population of 12 people and The second questionnaire to determine the role of the population of 49 people Were distributed. Finally, at the conclusion In response to the survey questions, The most important opportunities and threatening also The important factors of military strengths and weaknesses that The Islamic Republic of Iran are effective on defensive strategy’ were determined in 24 Geopolitical factors.

The geopolitics of the Caspian Sea region after the collapse of the Soviet Union and replace the four newly independent country instead in this area, Have been changes. In this study, as »Caspian Sea geopolitical impact of economic factors on the defense strategy of the Islamic Republic of Iran« is tried these developments, Geopolitics through the lens of economic factors on the defense strategy is considered. Therefore, in this study Application form After conducting theoretical studies and Ecology geopolitics of the Caspian Sea region have tried, Economic factors related to geopolitics And effective defense strategy Islamic Republic of Iran exploration Then to confirm this and to determine role of factors (In the context of project opportunities,  threatening, strengths and weaknesses) Two questionnaires were designed and set. The first questionnaire to confirm the geopolitical factors affecting economic The population of 12 people and The second questionnaire to determine the risk of the population of 49 people Were distributed. Finally, at the conclusion In response to the survey questions, The most important opportunities and threatening also The important factors of economic strengths and weaknesses that The Islamic Republic of Iran are effective on defensive strategy’ were determined in 30 Geopolitical factors.

Any country's geopolitical characteristics are among the efficient variables that form their defense strategy and policy. In other words, strategy is greatly influenced by geopolitical limitations and capabilities. The effect of geopolitics on adopting suitable and effective strategies have always been a case with which scholars in strategic studies have been mentally preoccupied, something that has doubled during the recent years. The Caspian region is one that has an important status in IRI's defense strategy, and has managed to attract many attentions due to its geopolitical and geostrategic advantages. It follows that efficient and suitable defense policies and strategies can be configured in this region by having knowledge of the Caspian region via geopolitical analysis. The present research aims to study and explain the geopolitical status of the Caspian Sea in I.R.I defense strategy. This research is applied in terms of objective, and has been conducted with analytical-descriptive method. Also, the required data and information have been gathered with library (books, publications and internet) and questionnaire method. The findings of the research showed that the Caspian Sea plays an efficient and important role in consolidating national power and promoting IRI's defense strategy due to having unique characteristics in political, economic, communication, military, cultural, geostrategic, environmental, and law dimensions.

Optimal defense strategy for a country in any field requires Understanding the factors that geopolitical scope and the impact of these factors on the country's defense strategy and ultimately its impact on relations with other countries in the international system. Sea of ​​Oman and the countries surrounding it, including Iran, Pakistan, Oman and the United Arab Emirates as part of the strategic Indian Ocean is, an environment that is relatively unknown and ignored in many aspects including geopolitical factors and natural human defense-related Is. Therefore, the present study has attempted to use the Rvshthqyq of descriptive, analytical and applied to the face after theoretical studies and ecology littoral states of the Arabian Sea, geopolitical issues, natural and man-effective strategy defense Islamic Republic of Iran identify and continue in consultation with some experts related to the subject and getting them a questionnaire including 25 closed questions and one open-ended questions set and was designed, then filled in the questionnaire between the expert and the expert community sample of 34 respondents had been for all the distribution and after obtaining the opinion of their collection and use A bit of statistical methods, to analyze data and finally to summarize and evaluate research question has been dealt with. In conclusion and in response to the research question, the most effective geopolitical issues, natural and man-countries of the Arabian Sea in the development of defense strategy Islamic Republic of Iran have an impact in terms of priorities average weight in the form of 20 factors geopolitics of natural and man-appointed have.

West Asia, due to the current developments of the international system, has caused the countries of the axis of resistance in the region to have great geopolitical importance. This importance due to their geographical connection with the country of Iran can have a great impact on the defense strategies of the Islamic Republic of Iran. The country's defense strategy should be investigated as a research problem; Therefore, in the current research, by using the descriptive-analytical method and in an applied manner, and by using the library method and field research, an attempt has been made to find the military geopolitical factors that are relevant and effective on the formulation of the defense strategy of Iran as the research objective. be identified. For this purpose, in order to determine these factors and explain their role (in the form of opportunistic, threatening, strength and weakness platforms), a two-part questionnaire was prepared and designed in order to confirm the effective factors of military geopolitics and their calculated roles on the development of a defense strategy among the statistical sample population. 50 people were distributed as a whole number and after obtaining the opinion of the statistical sample community, it was analyzed using statistical techniques and methods, and then the research questions were summarized and evaluated, and finally, in the conclusion part and in response to the questions The research, while determining the effective factors of the military geopolitics of the resistance axis countries, to explain the four roles (strength, weakness, opportunity and threat) of these factors which are effective in the formulation of the defense strategy of Iran. Been paid.