The conflict continued for much of the next ten years as an insurgency emerged to oppose the occupying forces and the post-invasion Iraqi government. An estimated 151,000 to 600,000 or more Iraqis were killed in the first 3–4 years of conflict. The United States officially withdrew from the country in 2011 but left private security contractors in its place to continue the war. It again became re-involved in 2014 at the head of a new coalition; the insurgency and many dimensions of the civil armed conflict continue.
- The conflict is also known as the War in Iraq, the Occupation of Iraq, the Second Gulf War, Gulf War II, and Gulf War 2. The lasted from 2003 to 2010 was called as Operation Iraqi Freedom by the United States military.