The Occupation of Iraq (2003–2011) was characterized by a large United States military deployment on Iraqi territory, beginning with the US-led invasion of the country in March 2003 which overthrew the Ba'ath Party government of Saddam Hussein and ending with the departure of US troops from the country in 2011. Troops for the occupation came primarily from the United States, the United Kingdom, and Australia, but 29 other nations also provided troops, and there were varying levels of assistance from Japan and other countries, as well as tens of thousands of private military company personnel.
Events in the year 2004 in Iraq.
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.
Amarah, also spelled Amara, is a city in south-eastern Iraq, located on a low ridge next to the Tigris River waterway south of Baghdad about 50 km from the border with Iran. It lies at the northern tip of the marshlands between the Tigris and Euphrates.
After the 2003 invasion of Iraq was completed and the regime of Saddam Hussein was toppled in May 2003, an Iraqi insurgency began that would last until the United States left in 2011. The 2003–2006 phase of the Iraqi insurgency lasted until early 2006, when it escalated from an insurgency to a Sunni-Shia civil war, which became the most violent phase of the Iraq War.
Operation Together Forward, also known as Forward Together, was an unsuccessful offensive against sectarian militias in Baghdad to significantly reduce the violence in which had seen a sharp uprise since the mid-February 2006 bombing of the Askariya Mosque, a major Shiite Muslim shrine, in Samarra.
The 2004 Iraq spring fighting was a series of operational offensives and various major engagements during the Iraq War. It was a turning point in the war; the Spring Fighting marked the entrance into the conflict of militias and religiously based militant Iraqi groups, such as the Shi'a Mahdi Army.
Operation Imposing Law, also known as Operation Law and Order, Operation Fardh al-Qanoon or Baghdad Security Plan (BSP), was a joint Coalition-Iraqi security plan conducted throughout Baghdad. Under the Surge plan developed in late 2006, Baghdad was to be divided into nine zones, with Iraqi and American soldiers working side by side to clear each sector of Shiite militias and Sunni insurgents and establish Joint Security Stations so that reconstruction programs could begin in safety. The U.S. military commander in Iraq, David Petraeus, went so far as to say Iraq would be "doomed" if this plan failed. Numerous members of Congress stated the plan was a critical period for the U.S. presence in Iraq.
The Diyala province campaign was a series of operations conducted by coalition forces against Iraqi insurgents and a number of bombing and guerrilla attacks against the security forces in Diyala Governorate of Iraq, with the purpose of control of the province.
Operation Phantom Thunder began on 16 June 2007, when Multi-National Force-Iraq launched major offensive operations against al-Qaeda and other extremist terrorists operating throughout Iraq. It was the largest coordinated military operation since the 2003 invasion of Iraq. Operation Phantom Thunder was a corps level operation, including Operation Arrowhead Ripper in Diyala Province, Operation Marne Torch and Operation Commando Eagle in Babil Province, Operation Fardh al-Qanoon in Baghdad, Operation Alljah in Anbar Province, and continuing special forces actions against the Mahdi Army in southern Iraq and against Al-Qaeda leadership throughout the country. The operation was one of the biggest military operations in Iraq since the U.S. invasion in 2003.
Operation Phantom Strike was a major offensive launched by the Multi-National Corps – Iraq on 15 August 2007 in a crackdown to disrupt both the al-Qaeda-affiliated Islamic State of Iraq and Shia insurgent operations in Iraq. It consisted of a number of simultaneous operations throughout Iraq focused on pursuing remaining ISI terrorists and Iranian-supported insurgent groups. It was concluded in January 2008 and followed up with Operation Phantom Phoenix.
During the Iraq War, the so-called Ramadan Offensive of the Iraqi insurgency marked a sharp increase in the number of violent attacks against the American-led military coalition in Iraq and also against the new Iraqi government, beginning in the end of October 2003 and persisting for most of November 2003.
Operation Phantom Phoenix was a major nationwide offensive launched by the Multinational Force Iraq (MNF-I) on 8 January 2008 in an attempt to build on the success of the two previous corps-level operations, Operation Phantom Thunder and Operation Phantom Strike and further reduce violence and secure Iraq's population, particularly in the capital Baghdad. The offensive consisted of a number of joint Coalition and Iraqi Army operations throughout northern Iraq as well as in the southern Baghdad Belts.
The Battle of Basra began on 25 March 2008, when the Iraqi Army launched an operation to drive the Mahdi Army militia out of the southern Iraqi city of Basra. The operation was the first major operation to be planned and carried out by the Iraqi Army since the invasion of 2003.
The 2008 Iraq spring fighting was a series of clashes between the Mahdi Army and allies and the Iraqi Army supported by coalition forces, in southern Iraq and parts of Baghdad, that began with an Iraqi offensive in Basra.
The siege of Sadr City was a blockade of the Shi'a district of northeastern Baghdad carried out by US and Iraqi government forces in an attempt to destroy the main power base of the insurgent Mahdi Army in Baghdad. The siege began on 4 April 2004 – later dubbed "Black Sunday" – with an uprising against the Coalition Provisional Authority following the government banning of a newspaper published by Muqtada Al-Sadr's Sadrist Movement. The most intense periods of fighting in Sadr City occurred during the first uprising in April 2004, the second in August the same year, during the sectarian conflict that gripped Baghdad in late 2006, during the Iraq War troop surge of 2007, and during the spring fighting of 2008.
The Iraqi conflict refers to a near-continuous series of violent events that began with the 2003 Anglo-American invasion of Iraq and deposition of Iraqi president Saddam Hussein, the most recent of which is the ISIS conflict in which the Iraqi government declared victory in 2017.
The Battle of Baghdad begun in February 2006 and continued until May 2008, for control of the capital city of Iraq. A combined force of Iraqi security forces and the allies including the U.S. Army fought against insurgents to retain control of the city during the sectarian civil war that engulfed the country in 2006.
United States 
Iraq 
United Kingdom 
Denmark 
El Salvador 
Abu Omar al-Baghdadi 
6,000+ soldiers