Sources of Violence
Violence is increasing in scope, complexity, and lethality. There are multiple sources of violence in Iraq: the Sunni Arab insurgency, al Qaeda and affiliated jihadist groups, Shiite militias and death squads, and organized criminality. Sectarian violence—particularly in and around Baghdad—has become the principal challenge to stability.
Most attacks on Americans still come from the Sunni Arab insurgency. The insurgency comprises former elements of the Saddam Hussein regime, disaffected Sunni Arab Iraqis, and common criminals. It has significant support within the Sunni Arab community. The insurgency has no single leadership but is a network of networks. It benefits from participants' detailed knowledge of Iraq's infrastructure, and arms and financing are supplied primarily from within Iraq. The insurgents have different goals, although nearly all oppose the presence of U.S. forces in Iraq. Most wish to restore Sunni Arab rule in the country. Some aim at winning local power and control.
Al Qaeda is responsible for a small portion of the violence in Iraq, but that includes some of the more spectacular acts: suicide attacks, large truck bombs, and attacks on significant religious or political targets. Al Qaeda in Iraq is now largely Iraqi-run and composed of Sunni Arabs. Foreign fighters—numbering an estimated 1,300—play a supporting role or carry out suicide operations. Al Qaeda's goals include instigating a wider sectarian war between Iraq's Sunni and Shia, and driving the United States out of Iraq.
Sectarian violence causes the largest number of Iraqi civilian casualties. Iraq is in the grip of a deadly cycle: Sunni insurgent attacks spark large-scale Shia reprisals, and vice versa. Groups of Iraqis are often found bound and executed, their bodies dumped in rivers or fields. The perception of unchecked violence emboldens militias, shakes confidence in the government, and leads Iraqis to flee to places where their sect is the majority and where they feel they are in less danger. In some parts of Iraq—notably in Baghdad—sectarian cleansing is taking place. The United Nations estimates that 1.6 million are displaced within Iraq, and up to 1.8 million Iraqis have fled the country.
Shiite militias engaging in sectarian violence pose a substantial threat to immediate and long-term stability. These militias are diverse. Some are affiliated with the government, some are highly localized, and some are wholly outside the law. They are fragmenting, with an increasing breakdown in command structure. The militias target Sunni Arab civilians, and some struggle for power in clashes with one another. Some even target government ministries. They undermine the authority of the Iraqi government and security forces, as well as the ability of Sunnis to join a peaceful political process. The prevalence of militias sends a powerful message: political leaders can preserve and expand their power only if backed by armed force.
The Mahdi Army, led by Moqtada al-Sadr, may number as many as 60,000 fighters. It has directly challenged U.S. and Iraqi government forces, and it is widely believed to engage in regular violence against Sunni Arab civilians. Mahdi fighters patrol certain Shia enclaves, notably northeast Baghdad's teeming neighborhood of 2.5 million known as "Sadr City." As the Mahdi Army has grown in size and influence, some elements have moved beyond Sadr's control.
The Badr Brigade is affiliated with the Supreme Council for the Islamic Revolution in Iraq (SCIRI), which is led by Abdul Aziz al-Hakim. The Badr Brigade has long-standing ties with the Iranian Revolutionary Guard Corps. Many Badr members have become integrated into the Iraqi police, and others play policing roles in southern Iraqi cities. While wearing the uniform of the security services, Badr fighters have targeted Sunni Arab civilians. Badr fighters have also clashed with the Mahdi Army, particularly in southern Iraq.
Criminality also makes daily life unbearable for many Iraqis. Robberies, kidnappings, and murder are commonplace in much of the country. Organized criminal rackets thrive, particularly in unstable areas like Anbar province. Some criminal gangs cooperate with, finance, or purport to be part of the Sunni insurgency or a Shiite militia in order to gain legitimacy. As one knowledgeable American official put it, "If there were foreign forces in New Jersey, Tony Soprano would be an insurgent leader."
Four of Iraq's eighteen provinces are highly insecure—Baghdad, Anbar, Diyala, and Salah ad Din. These provinces account for about 40 percent of Iraq's population of 26 million. In Baghdad, the violence is largely between Sunni and Shia. In Anbar, the violence is attributable to the Sunni insurgency and to al Qaeda, and the situation is deteriorating.
In Kirkuk, the struggle is between Kurds, Arabs, and Turkmen. In Basra and the south, the violence is largely an intra-Shia power struggle. The most stable parts of the country are the three provinces of the Kurdish north and parts of the Shia south. However, most of Iraq's cities have a sectarian mix and are plagued by persistent violence.