Sadr City
In April–June 2008, two brigades of the Iraqi Army 11th Division, supported by US forces, moved into the southern third of Sadr City. They were tasked to stop rocket and mortar attacks on US bases and the Green Zone. Following the Siege of Sadr City—a month of fighting—the Mahdi Army agreed to let Iraqi forces into the remaining portion of the city. On May 20, troops from the Iraqi Army 3rd Brigade of the 1st (Iraqi Reaction Force) Division and a brigade from the 9th Division moved into the northern districts of Sadr City and began clearing operations.