The 2003 invasion of Iraq, which toppled Iraqi president Saddam Hussein and his Arab Socialist Ba'ath Party, was the decisive event that allowed Iran to begin exerting an unprecedented level of influence on Iraqi politics. [1] Leveraging the fact that Shia Muslims account for the majority of the population in both countries, the Iranian government used Shia militias to serve Iran's interests during the Iraq War. [2] This culminated in Iran's involvement in the Iraqi insurgency, in which there were instances of Shia militants engaging the Multi-National Force in direct combat. [3] [4] Organizations that enjoyed large-scale Iranian support included the Mahdi Army of Muqtada al-Sadr, as well as Kata'ib Hezbollah, Asa'ib Ahl al-Haq, and the Promised Day Brigade. Since 2007, the United States has employed a "kill or capture" strategy with regard to confronting Iranian operatives in the Iraqi conflict.
During a meeting with British Foreign Secretary Jack Straw on 25 September 2001, Iranian president Muhammad Khatami said "Iran fully understands the feelings of the Americans about the terrorist attacks in New York and Washington on September 11", and that Iranians instead felt differently and had expressed their sympathetic feelings with bereaved Americans. [5] The attacks were condemned by both the President and the Supreme Leader of Iran. [6] [7] The military forces of the United States of America and the Islamic Republic of Iran cooperated with each other to overthrow the Taliban regime which had conflicts with the government of Iran. [8] [9] Iran's Quds Force helped US forces and Afghan rebels in 2001 uprising in Herat. [10]
Months later, in his 2002 State of the Union Address, US President George W. Bush described Iran as being part of an "axis of evil" alongside Iraq and North Korea. Both reformists and conservatives in Iran responded negatively to this characterization, with Masoumeh Ebtekar calling it a "strategic mistake" by the Bush administration. [11] Daniel Heradstveit and G. Matthew Bonham argued that the speech caused a reversal in friendly US–Iranian relations that had developed after the Cold War; the Iranian opposition figures they interviewed saw it as a "betrayal", and widely agreed that it was "a godsend to the conservatives", who favoured a more hostile and militant approach towards the United States. [9]
Several claims have been made that the US has violated Iranian territorial sovereignty through the use of drones since 2003. [12] [13]
In September 1980, Iraq under Saddam Hussein launched an invasion of Iran in an unsuccessful attempt to annex oil-rich Iranian territory, [14] [15] : 261 marking the beginning of a war that would last until 1988. [16] The Iran–Iraq War is regarded as being a major trigger for rising sectarianism in the region, as it was viewed by many as a clash between Sunni Muslims (Ba'athist Iraq and other Arab States) [17] [18] [19] and the Shia revolutionaries that had taken power in Iran. [20]
In a declassified 1991 report, the CIA estimated that Iran had suffered more than 50,000 casualties from Iraq's use of several chemical weapons, [21] though modern estimates have reached more than 100,000, as the long-term effects continued to cause casualties; [22] [23] they also show that the United States was providing reconnaissance intelligence to Iraq around 1987–88, which was then used to launch chemical weapon attacks on Iranian troops, and that the CIA fully knew that chemical weapons would be deployed and sarin and cyclosarin attacks followed. [24] According to Iraqi documents, assistance in developing chemical weapons was obtained from firms in many countries, including the United States. [25]
In January 2002, one year before the U.S.-led invasion of Iraq, bilateral relations between Iran and Iraq improved significantly when an Iranian delegation, led by Amir Hussein Zamani, visited Iraq for final negotiations to resolve the conflict through talks on issues of prisoners of war and those who went missing in action during the Iran–Iraq War. [26]
In the aftermath of the 2003 invasion of Iraq, Iran supported Shi'ite insurgent groups dubbed the Special Groups in Iraq, which were made up by the Mahdi army, Kata'ib Hezbollah, Asa'ib Ahl al-Haq, and the Promised Day Brigade. The U.S. used the Iraqi government to fight these insurgents as a result. [27] [28] [29] [30] A 2008 report by the Combating Terrorism Center at West Point based on reports from the interrogations of dozens of captured Shia fighters described an Iranian-run network smuggling Shia fighters into Iran where they received training and weapons before returning to Iraq. [31] [32]
According to two unnamed US officials, the Pentagon is examining the possibility that the Karbala provincial headquarters raid was supported by Iranians. In a speech on 31 January 2007, Iraqi Prime Minister Nouri al-Maliki stated that Iran was supporting attacks against Coalition forces in Iraq, [33] and some Iraqis suspect that the raid may have been perpetrated by the Quds Force in retaliation for the detention of five Iranian officials by US forces in the northern Iraqi city of Irbil on 11 January. [34] [35]
In 2007, tensions increased greatly between Iran and Iraqi Kurdistan due to the latter's giving sanctuary to the militant Kurdish secessionist group Party for a Free Life in Kurdistan (PEJAK). According to reports, Iran had been shelling PEJAK positions in Iraqi Kurdistan since 16 August. These tensions further increased with an alleged border incursion on 23 August by Iranian troops who attacked several Kurdish villages killing an unknown number of civilians and militants. [36]
An estimated 150 Iranian intelligence officers, plus members of Iran's Islamic Revolutionary Guard Corps, are believed to be active inside Iraq at any given time. For more than a year, U.S. troops have detained and recorded fingerprints, photographs, and DNA samples from dozens of suspected Iranian agents in a catch and release program designed to intimidate the Iranian leadership. [37]
Coalition forces also began to target alleged Iranian Quds Force operatives in Iraq, either arresting or killing suspected members. The Bush administration and coalition leaders began to publicly state that Iran was supplying weapons, particularly EFP devices, to Iraqi insurgents and militias although to date have failed to provide any proof for these allegations. Further sanctions on Iranian organizations were also announced by the Bush administration in the autumn of 2007. On 21 November 2007, Lieutenant General James Dubik, who is in charge of training Iraqi security forces, praised Iran for its "contribution to the reduction of violence" in Iraq by upholding its pledge to stop the flow of weapons, explosives, and training of extremists in Iraq. [38]
The Mahdi Army was an Iraqi Shia militia created by Muqtada al-Sadr in June 2003 and disbanded in 2008.
An Iraqi insurgency began shortly after the 2003 American invasion deposed longtime leader Saddam Hussein. It is considered to have lasted until the end of the Iraq War and U.S. withdrawal in 2011. It was followed by a renewed insurgency.
The Quds Force is one of five branches of Iran's Islamic Revolutionary Guard Corps (IRGC) specializing in unconventional warfare and military intelligence operations. U.S. Army's Iraq War General Stanley McChrystal describes the Quds Force as an organization analogous to a combination of the CIA and the Joint Special Operations Command (JSOC) in the United States. Responsible for extraterritorial operations, the Quds Force supports non-state actors in many countries, including Hezbollah, Hamas, Palestinian Islamic Jihad, the Houthi movement, and Shia militias in Iraq, Syria, and Afghanistan. According to Michael Wigginton et al., the Al-Quds Force is "a classic example of state-sponsored terrorism."
The Iraq War, sometimes called the Second Gulf War, was a protracted armed conflict in Iraq from 2003 to 2011. It began with the invasion of Iraq by the United States-led coalition that overthrew the Ba'athist government of Saddam Hussein. The conflict continued for much of the next decade as an insurgency emerged to oppose the coalition forces and the post-invasion Iraqi government. US troops were officially withdrawn in 2011.
The 1991 Iraqi uprisings were ethnic and religious uprisings against Saddam Hussein's regime in Iraq that were led by Shia Arabs and Kurds. The uprisings lasted from March to April 1991 after a ceasefire following the end of the Gulf War. The mostly uncoordinated insurgency was fueled by the perception that Iraqi President Saddam Hussein had become vulnerable to regime change. This perception of weakness was largely the result of the outcome of the Iran–Iraq War and the Gulf War, both of which occurred within a single decade and devastated the population and economy of Iraq.
The term militia in contemporary Iraq refers to armed groups that fight on behalf of or as part of the Iraqi government, the Mahdi Army and Badr Organization being two of the biggest. Many predate the overthrow of Saddam Hussein, but some have emerged since, such as the Facilities Protection Service. The 2003 invasion of Iraq by United States-led forces undermined the internal order in the country and brought about, among other things, the establishment of several pro-Iranian militias affiliated with the Islamic Revolutionary Guard Corps's Quds Force. The militias were set up with the purpose of driving the U.S. and Coalition forces out of Iraq and establishing Iranian involvement in the country. Prominent among the militias are Asa'ib Ahl al-Haq, Kata'ib Hezbollah and Harakat al-Nujaba.
The Karbala provincial headquarters raid was a special operation carried out on January 20, 2007, by the Asa'ib Ahl al-Haq against the U.S. contingent of the Joint Security Station, located within the Iraqi Police headquarters. The assault, which left five U.S. soldiers dead and three wounded, has been called the "boldest and most sophisticated attack in four years of warfare" and is furthermore notable for being one of the few instances when any sort of militants or insurgents have actually managed to capture U.S. soldiers since the Vietnam War.
Since the Iranian Revolution in 1979, the Islamic Republic of Iran has been embroiled in tense relations with the U.S. and its allies. Following the hostage crisis, both countries severed relations. Since then, both countries have been involved in numerous direct confrontations, diplomatic incidents, and proxy wars throughout the Middle East, which has caused the tense nature of the relationship between the two to be called an 'international crisis'. Both countries have often accused each other of breaking international law on several occasions. The U.S. has often accused Iran of sponsoring terrorism and of illegally maintaining a nuclear program, as well as using strong rhetoric against Israel, of which Iran has questioned its legitimacy and its right to exist while supporting Hamas, an antizionist terrorist group in the Gaza Strip. Meanwhile, Iran has often accused the U.S. of human rights violations and of meddling in their affairs, especially within the Iranian Democracy Movement.
Since the Iranian Revolution in 1979, the government of the Islamic Republic of Iran has been accused by several countries of training, financing, and providing weapons and safe havens for non-state militant actors, such as Hezbollah in Lebanon, Hamas in Gaza, and other Palestinian groups such as the Islamic Jihad (IJ) and the Popular Front for the Liberation of Palestine (PFLP). These groups are designated terrorist groups by a number of countries and international bodies such as the EU, UN, and NATO; however, Iran considers such groups to be "national liberation movements" with a right to self-defense against Israeli military occupation. These proxies are used by Iran across the Middle East and Europe to foment instability, expand the scope of the Islamic Revolution, and carry out terrorist attacks against Western targets in the regions. Its special operations unit, the Quds Force, is known to provide arms, training, and financial support to militias and political movements across the Middle East, including Bahrain, Iraq, Lebanon, Palestine, Syria, and Yemen.
Qasem Soleimani was an Iranian military officer who served in the Islamic Revolutionary Guard Corps (IRGC). From 1998 until his assassination by the United States in 2020, he was the commander of the Quds Force, an IRGC division primarily responsible for extraterritorial and clandestine military operations, and played a key role in the Syrian Civil War through securing Russian intervention. He was described as "the single most powerful operative in the Middle East" and a "genius of asymmetric warfare." Former Mossad director Yossi Cohen said Soleimani's strategies had "personally tightened a noose around Israel's neck."
Special Groups (SGs) is a designation given by the United States military to the cell-based Shi'a paramilitary organizations operating within Iraq, According to the United States these groups are funded, trained, and armed by the Iranian Quds Force, part of the Islamic Revolutionary Guard Corps (IRGC).
Since the establishment of Islamic Revolutionary Guard Corps the organization has been involved in economic and military activities, some of them controversial.
Kata'ib Hezbollah, also known as the Hezbollah Brigades, is a radical Iraqi Shiite paramilitary group which is a part of the Iraqi Popular Mobilization Forces (PMF), staffing the 45th, 46th, and 47th Brigades. During the Iraq War (2003–11), the group fought against Coalition forces. It has been active in the War in Iraq (2013–2017) and the Syrian Civil War. The group was commanded by Abu Mahdi al-Muhandis until he was killed in a US drone attack in 2020. Thereafter, Abdul Aziz al-Muhammadawi became the new leader of the PMF. The group seeks to establish an Iran-aligned government in Iraq, expel American forces from the country, and advance the regional and international interests of Iran in Iraq and the region. The group is responsible for killing hundreds of U.S. soldiers and takes a central part in carrying out attacks against U.S. targets in Iraq and acts as part of the Axis of Resistance. Kata'ib Hezbollah has received extensive training, funding, logistic support, weapons, and intelligence from the IRGC's elite Quds Force.
The Northern Iraq offensive began on 4 June 2014, when the Islamic State of Iraq and Levant, assisted by various insurgent groups in the region, began a major offensive from its territory in Syria into Iraq against Iraqi and Kurdish forces, following earlier clashes that had begun in December 2013 involving guerillas.
The Iranian intervention in Iraq has its roots in the post-2003 invasion of Iraq by the United States and its allies, when the infrastructure of the Iraqi armed forces, as well as intelligence, were disbanded in a process called "de-Ba'athification" which allowed militias with close ties to Tehran to join the newly reconstituted army.
The Popular Mobilization Forces (PMF), also known as the Popular Mobilization Units (PMU), is an Iraqi state-sponsored paramilitary network composed of about 67 armed factions that are mostly Shia Muslim groups, but also include Sunni Muslim, Christian, and Yazidi groups. The Popular Mobilization Units were formed in 2014 and fought in nearly every major Iraqi battle against Islamic State. Many of its main militias that belong to the Shia faction, trace their origins to the "Special Groups", Iranian-sponsored Shi'ite groups that previously fought in the Iraqi insurgency against the United States and the Coalition forces, as well as a sectarian conflict against Sunni Jihadist and Ba'athist insurgents. It has been labeled the new Iraqi Republican Guard after it was fully reorganized in early 2018 by its then-Commander Haider al-Abadi, Prime Minister of Iraq from 2014 to 2018, who issued "regulations to adapt the situation of the Popular Mobilization fighters".
Iran and Saudi Arabia are engaged in an ongoing struggle for influence in the Middle East and other regions of the Muslim world. The two countries have provided varying degrees of support to opposing sides in nearby conflicts, including the civil wars in Syria and Yemen; and disputes in Bahrain, Lebanon, Qatar, and Iraq. The struggle also extends to disputes or broader competition in other countries globally including in West, North and East Africa, South, Central, Southeast Asia, the Balkans, and the Caucasus.
The Baqir Brigade, is a Syrian pro-government militia originating in the Aleppo Governorate that fights in the Syrian Civil War. The militia is one of the most prominent and largest pro-government militias from the Aleppo area and part of the "Local Defence Forces" network. Its members mostly consists of tribesmen from the al-Baggara tribe that traditionally supported the rule of the al-Assad family despite being mostly Sunni Muslim. Though the militia's fighters thus come from a largely Sunni background, many of them have converted to or are at least strongly influenced by Shia Islam. The Baqir Brigade has also been noted for its strong connections to the Lebanese Hezbollah, Iran, and various Shiite Iraqi militias, and is thus generally considered to be a Shia or "Shi'ified" fighting force.
On 29 December 2019, the United States conducted airstrikes against Kata'ib Hezbollah's weapons depots and command centers in Iraq and Syria, reportedly killing at least 25 militiamen and wounding 55 more. The U.S. Department of Defense said the operation was in retaliation for repeated attacks on Iraqi military bases hosting Operation Inherent Resolve (OIR) coalition forces, particularly the 27 December 2019 attack on a Kirkuk airbase that left an American civilian contractor dead. Kata'ib Hezbollah, an extremist Shi'ite militia funded by Iran, denied any responsibility for the attacks.
Akram Abbas al-Ka'abi is an Iraqi militant leader who is the founder and Secretary-General of Harakat Hezbollah al-Nujaba (HHN) in Iraq. Kaabi is a U.S.-designated terrorist who is regarded as one of the main operatives of IRGC's Quds Force in Iraq. He has been an ardent supporter and promoter of Iranian influence in Iraq while being the most outspoken critic of American military presence as he seeks to compel U.S. forces to withdraw completely from Iraq.