Sadr City
On May 10, a ceasefire was ordered by Muqtada Al-Sadr, allowing Iraqi troops into all of Sadr City. On May 20, in an entirely Iraqi-planned and executed operation, six battalions of Iraqi troops, including troops from the 1st (Quick Reaction Force) division stationed in Al-Anbar and armored forces from the 9th Division based in Taji, operating without the involvement of U.S. ground forces, pushed deep into Sadr City. The Iraqi Security Forces met little resistance in moving through Sadr City and took up positions formerly occupied by the Mahdi Army, including the Imam Ali and Al-Sadr hospitals and Al-Sadr's political office. Sadr City then became the main base for Shi'a Insurgent group Kata'ib Hezbollah, an offshoot of the Mahdi Army.