2. American Occupation in 2003
Throughout 2002, the US government made it clear that removing Saddam Hussein from power was a major goal, accusing the Iraqi regime of continuing the production and use of weapons of mass destruction, and of having links with terrorist organizations, particularly al-Qaeda.
The invasion of Iraq was launched on March 19, 2003 by American forces with British support. The war was fought fitfully over a three-week period.
Large scale operations ended when the US army entered Baghdad in force on 9 April 2003.

3. Looting
With the large scale military operations, the central authority in Baghdad and the rest of Iraq collapsed and this led to outbreaks of looting and property destruction on a huge scale.
Nearly every ministerial building was systemically stripped of its contents, and fires were ignited in the buildings. Hotels, palaces, villas of the elite, embassies, hospitals, barracks, water works were all targeted and mostly looted, vandalized and burnt down.
While all these were taking place, Baghdad’s police force, normally 40,000 men strong, had disappeared and there were no firefighters to dampen the flames. The invading soldiers and officers did not do anything because of lack of orders to intervene and stop looting.

5. Sectarianism in Iraq
The Oxford English Dictionary defines “sectarianism” as adherence or excessive attachment to a particular sect or party, especially a religious one.
Political sectarianism refers to a system of governance that favors and facilitates the empowerment of parties with platforms defined on the basis of sectarian identity.
Sectarianism in Iraq was not simply a result of the occupation. Saddam Hussein had already played on sectarian differences, using divide-and-rule tactics. While in power he had deliberately established a sectarian hierarchy within government ranks, largely empowering Sunni Arabs over Shias.

6. Sectarianism after the Occupation
Coalition Provisional Authority, set up in March 2003 with the order of President Bush and charged with temporary powers of government in Iraq.
De-Ba’athification decree
In July 2003, the CPA ordered the establishment of a non-sovereign Iraqi Governing Council as the principal body of the Iraqi interim administration. The 25 members of the council who would run the ministries were selected on the basis of a sectarian criteria.
January 2005: elections for the Transitional National Assembly
In December 2005, national elections were held. Most political parties campaigned on the basis of ethno-sectarian appeals, and the election results demonstrated that Iraqis had voted overwhelmingly along the communal lines.

7. The New Prime Minister

8. Civil War in Iraq
Between 2006 and 2008, there was a bloody civil war in the country fuelled by sectarianism.
One of the turning points that paved the way for the civil war was an explosion inside the al-Askari Mosque in Samarra, demolishing the golden dome of this sacred Shia shrine, in late February 2006.
In retaliation, the newly empowered Shia dominated police forces and Shia militias launched a series of attacks citywide that targeted Sunni militia fighters and civilians.
Throughout the 2006 and 2007, militias on both sides used brutal practices to seize territory and displace opposing groups.
By 2007, an estimated 5.25 million out of Baghdad’s total population of 7 million reportedly lived in areas dominated by a single sect.

10. Pre-2006 Baghdad

11. After the Civil War

12. Dealing With Violence
An increase in the number of the US troops. A change in the military strategy. The US troops becoming more visible and more active.
Agreement between the former Sunni insurgents and the US officials. Establishment of «Sons of Iraq». Former insurgents providing intelligence to the US troops
Constructing a series of concrete walls around some Sunni and Shia neighborhoods.