عنوان مقاله [English]
Iran's foreign policy strategy towards Iraq after the fall of Saddam has been influenced by various factors, including geography, religion, economy and axis of resistance. Given the US occupation of Iraq, the decline of established government and the army, the particular attitude of the regional countries gradually led to an increase in Iran's regional and global influence in the new Iraq. After the fall of Saddam, Iran's foreign policy in Iraq, on the one hand, shaped security in Iraq, because after Saddam and the fall of the Ba'athist army, the security crisis spread in Iraq. Iran has played a key role in shaping Iraq's new security, including hardware and software security. But on the other hand, the involvement of other regional countries, such as Saudi Arabia, has led to new security crises in Iraq. In fact, Iran's policy in Iraq has had paradoxical effects on national security. As the economic dimension and economic growth and the decline of extremist groups such as ISIS has had positive and capacity-building effects, but in other dimensions such as the support of Iran's regional rivals for the insurgency in Iraq, the survival of extremist groups, authority of the central government have been challenged.
 Assistant Professor and Faculty Member, Faculty of Law and Political Science, Islamic Azad University, Zanjan, Iran, Corresponding Author, email: Malek_Zolghader@yahoo.com.
 M.Sc. Student, Political Science, Faculty of Law and Political Science, Takestan Branch, Islamic Azad University, Qazvin, Iran