Iraqi civil war (2006–2008)

Iraqi civil war (2006–2008)
Joey Buccino · CC BY-SA 3.0 · source
Conflict	Iraqi civil war (2006–2008)
Date	2006–2008
Place	Iraq
Result	Ceasefire, Iraqi Security Forces consolidation, U.S. troop surge and withdrawal; sectarian partition avoided

Iraqi civil war (2006–2008) The Iraqi civil war (2006–2008) was an intense period of sectarian violence in Iraq characterized by clashes among Shia, Sunni and Kurdish militias, insurgent groups and coalition forces during the post-2003 occupation era. The conflict overlapped with the Iraq War and the War on Terror, drawing actors such as Al-Qaeda in Iraq, Muqtada al-Sadr's forces, and elements of the Iraqi Army into pitched urban combat across Baghdad, Mosul, Basra, and the Al Anbar Governorate.

Background

Sectarian tensions intensified after the 2003 invasion of Iraq and the dismantling of the Ba'ath Party regime led by Saddam Hussein, producing power vacuums exploited by Shia militias, Sunni insurgents, and Kurdish authorities. The 2005 political milestones including the 2005 elections and the drafting of the Iraqi Constitution of 2005 shaped competition among Dawa, SCIRI, and Iraqi Accord Front factions. Regional actors such as Iran and Saudi Arabia and international actors like the United States and United Kingdom influenced force projection through proxies, sectarian funding, and the presence of occupations like the Multinational Force in Iraq. Specific flashpoints included the 2004 Najaf clashes, the 2005 insurgency phase, and the 2006 Al-Askari mosque bombing in Samarra.

Timeline of conflict

2006 began with escalating reprisals after the Samarra bombing, triggering cycles of targeted killings, sectarian cleansing and militia expansion in neighborhoods like Sadr City, Adhamiyah, and Dora. 2006–2007 saw the emergence of Al-Qaeda in Iraq under Abu Musab al-Zarqawi's network and the rise of Mahdi Army operations under Muqtada al-Sadr, leading to deadly confrontations such as the Basra clashes and repeated Baghdad battles. The 2007 U.S. troop surge and the initiation of the Anbar Awakening shifted dynamics, with Sunni tribal groups like the Sons of Iraq aligning with U.S. forces against ISIS precursor elements. By late 2008, major insurgent operations had been degraded, coalition units were drawing down, and political agreements such as the SOFA set timelines for withdrawal.

Major parties and factions

Significant actors included Al-Qaeda in Iraq, Mahdi Army, Jaysh al-Mahdi, Badr Organization, Supreme Islamic Iraqi Council, Islamic State of Iraq, Sunni insurgent groups such as the Iraqi Islamic Army, tribal coalitions like the Anbar Salvation Council and Sons of Iraq, security forces including the Iraqi Army, Iraqi Police, and international contingents under the Multinational Force in Iraq led by the United States Marine Corps and United States Army. Regional interventionists comprised IRGC elements, Hezbollah-linked advisers, and external supporters from Syria and Saudi Arabia. Political entities such as the United Iraqi Alliance, Iraqi National List, and figures like Nouri al-Maliki, Iraqi Vice President, and Ayatollah Ali al-Sistani played roles in legitimizing factions.

Key battles and campaigns

Key urban campaigns included sustained operations in Baghdad neighborhoods during the Battle of Baghdad (2006–2007), the Battle of Basra (2008), the Sadr City confrontations, and the Fallujah-era insurgency continuations. Other major engagements occurred in Mosul where Al-Qaeda in Iraq and later Islamic State of Iraq fought Iraqi Security Forces and Peshmerga elements, and in Al Anbar Governorate during the Anbar campaign and the Anbar Awakening, which included clashes at Ramadi and Fallujah. Coalition operations such as Operation Phantom Thunder and Operation Phantom Strike targeted insurgent networks across Diyala Governorate and Salaheddin Governorate.

Humanitarian impact and casualties

The conflict produced widespread civilian displacement, sectarian killings, and attacks against civilians in marketplaces, mosques, and neighborhoods like Sadr City and Al-Mansour. Estimates of deaths vary, with numerous counts by Iraq Body Count and independent studies attributing hundreds of thousands of fatalities across combatants and civilians. Displacement created waves of internally displaced persons in Kurdistan Region camps and refugee flows into Syria and Jordan. Humanitarian organizations including International Committee of the Red Cross and UNAMI documented human rights violations, torture in detention centers, and attacks on medical facilities as seen in incidents near Baghdad International Airport and Basra.

Political responses and reconciliation

Political efforts involved national initiatives led by Prime Minister Nouri al-Maliki and consultative interventions by Ayatollah Ali al-Sistani, international mediation by United States envoys and the United Nations, and reconciliation programs tied to the Sunni Awakening and integration schemes for former fighters like the Sons of Iraq. Key legal and diplomatic milestones included negotiation of the SOFA and provincial elections in Al Anbar Governorate and Nineveh Governorate intended to recalibrate power-sharing among the United Iraqi Alliance, Kurdish parties such as the Patriotic Union of Kurdistan and Kurdistan Democratic Party, and Sunni blocs.

Aftermath and legacy

By 2009 the intensity of sectarian warfare had declined, but unresolved grievances, weakened institutions, and fragmented security structures contributed to later insurgencies culminating in the Iraqi insurgency (2011–2013) and the rise of the ISIL that captured Mosul in 2014. The period reshaped regional alignments, expanding Iran's influence through groups like the Badr Organization and altering United States military doctrine through lessons from the surge strategy. Memorialization, transitional justice debates, and political realignments continue to influence contemporary Iraqi politics, federalism disputes with the Kurdistan Regional Government, and discussions in international forums such as the United Nations Security Council.

Category:Iraq