Iraqi Civil War

Iraqi Civil War
Name	Iraqi Civil War
Date	2006–2008 (principal phase)
Place	Iraq
Result	Fragmentation, insurgency, sectarian realignment

Iraqi Civil War

The Iraqi Civil War was a period of intense sectarian, ethnic, and political violence that followed the 2003 Invasion of Iraq and escalated sharply after the 2005–2006 period, producing widespread urban warfare, insurgency, and transnational militancy. The conflict involved Iraqi Sunni, Shi'a, Kurdish, and external actors contesting control of territory, institutions, and resources across provinces such as Baghdad, Mosul, and Basra. The war interacted with regional events including the Syrian Civil War, the rise of ISIL, and interventions by states like United States and Iran.

Background and causes

Underlying causes combined the aftermath of the Invasion of Iraq led by the United States and United Kingdom, the collapse of Ba'ath Party rule under Saddam Hussein, and policies such as de-Ba'athification and the 2007 surge that reshaped power balances. Institutional collapse after the 2003 invasion of Iraq led to the rise of insurgent groups including foreign fighters linked to Al-Qaeda in Iraq, local militias associated with parties like United Iraqi Alliance and SCIRI, and emergent organizations connected to clerical networks centered on figures such as Muqtada al-Sadr and Nouri al-Maliki. Longstanding sectarian tensions between Shi'a and Sunni communities interacted with ethnic tensions involving Kurds and minorities such as Assyrians, fueling cycles of revenge after events such as the 2006 al-Askari mosque bombing and the Samarra bombing.

Major phases and timeline

The conflict can be divided into distinct phases: immediate post-2003 insurgency, the 2006–2008 peak of sectarian civil conflict, the 2011–2014 resurgence culminating in ISIL territorial gains, and the 2014–2017 counteroffensives. The 2006 phase saw massacres and neighborhood purges around Baghdad following the 2006 al-Askari mosque bombing, while 2007 included the surge and the Anbar Awakening that shifted dynamics in Al Anbar. From 2011 onward, the U.S. withdrawal coincided with political disputes under Nouri al-Maliki and the growth of ISIL, which declared a caliphate after capturing Mosul in 2014. The Battle of Mosul (2016–2017) and operations such as the Fallujah offensive were decisive battlegrounds in the 2014–2017 counteroffensive involving coalitions led by the Iraqi Armed Forces and supported by CENTCOM and multinational forces.

Key actors and factions

Primary Iraqi actors included the Iraqi Army, the Iraqi Police, sectarian militias such as Mahdi Army loyal to Muqtada al-Sadr, and Shia paramilitary groups under the umbrella of Popular Mobilization Forces connected to Hashd al-Shaabi and leaders like Hadi al-Amiri. Sunni insurgent groups encompassed fragments of Al-Qaeda in Iraq and later ISIL led by figures such as Abu Bakr al-Baghdadi. Kurdish forces were represented by the Peshmerga affiliated with parties like the Kurdistan Democratic Party and the Patriotic Union of Kurdistan. External state actors influencing the conflict included Iran through the Quds Force and political parties like Iran-affiliated groups, as well as the United States with military and diplomatic engagement, Turkey conducting cross-border operations against Kurdish elements, and Saudi Arabia and Qatar implicated in regional Sunni–Shi'a competition. Non-state transnational networks such as foreign volunteer brigades and extremist organizations from Al-Qaeda affiliates shaped battlefield tactics and recruitment.

Humanitarian impact and casualties

The war produced mass displacement, with millions of internally displaced persons (IDPs) fleeing governorates like Nineveh Governorate and Diyala Governorate to seek refuge in Erbil and Kurdistan Region camps. Civilian casualties were concentrated in urban massacres, suicide bombings, and sectarian cleansing in neighborhoods like Sadr City and Adhamiyah. Human rights abuses included extrajudicial killings, enforced disappearances, and systematic attacks on Assyrian and Yazidi communities, exemplified by the Sinjar massacre. Health and infrastructure crises affected hospitals in Baghdad and water systems across provinces, aggravating outbreaks and shortages. Casualty estimates vary across sources and methodology, reflecting combatant and noncombatant fatalities from events such as the Camp Speicher massacre and the Hujair massacre.

International involvement and interventions

International intervention ranged from the 2003 invasion of Iraq coalition forces under the United States Department of Defense to subsequent training and advising by entities like NATO and bilateral missions from countries including United Kingdom and France. Iran exercised influence through political patronage and militia support involving figures like Qasem Soleimani of the Islamic Revolutionary Guard Corps; the United States led air campaigns against ISIL under operations coordinated by Operation Inherent Resolve. Humanitarian organizations such as UNAMI and non-governmental actors provided relief amid access constraints. Regional diplomacy included initiatives by United Nations Security Council resolutions and negotiations involving Saudi Arabia and Turkey to manage cross-border implications.

Aftermath, legacy, and reconciliation efforts

After major combat operations against ISIL concluded in 2017, Iraq faced reconstruction, demining, and justice challenges including trials for ISIL members and accountability for militia abuses. Political processes involved efforts to integrate Popular Mobilization Forces into state structures, debates over federalism with the Kurdistan Region culminating in the 2017 Kurdistan Region independence referendum, and reform initiatives under successive prime ministers. Reconciliation mechanisms included local amnesty programs, tribal mediation in Anbar, and international assistance for returnee reintegration and heritage preservation in sites like Al-Hadra and Hatra. The conflict's legacy shaped regional security doctrines, counterterrorism practices, and debates on occupation and sovereignty, influencing policy in capitals such as Washington, D.C., Tehran, Ankara, and Riyadh.

Category:Wars involving Iraq