resistance groups still loyal to Saddam Hussein's regime. His unit was headquartered in Hussein's hometown and this environment necessitated a different approach from those of units located in the more peaceful regions in the south and the north of the country. Significant OIF I operations Operation Planet X (15 May 2003) Operation Peninsula Strike (9 June 2003 – 12 June 2003) Operation Desert Scorpion (15 June 2003 – 29 June 2003) Operation Sidewinder (29 June 2003 – 7 July 2003) Operation Soda Mountain (12 July 2003 – 17 July 2003) Operation Ivy Serpent (12 July 2003 – 21 July 2003) Operation Ivy Lightning (12 August 2003) Operation Ivy Needle (26 August 2003) Operation Industrial Sweep (October 2003) Operation Ivy Cyclone (7 November 2003) Operation Ivy Cyclone II (17 November 2003) Operation Red Dawn (13 December 2003) Operation Ivy Blizzard (17 December 2003) Operation Arrowhead Blizzard (17 December 2003) Operation Rifles Fury (21 December 2003) Subsequent Iraq Deployments The division's second deployment to Iraq began in the fall of 2005. The division headquarters replaced the 3rd Infantry Division, which had been directing security operations as the headquarters for Multi-National Division – Baghdad. The 4th ID assumed responsibility on 7 January 2006 for four provinces in central and southern Iraq: Baghdad, Karbala, An-Najaf and Babil. On 7 January 2006, MND-Baghdad also assumed responsibility for training Iraqi security forces and conducting security operations in the four provinces. During the second deployment, 3rd Brigade of the 4th Infantry Division area of operation (AO) was Saladin and Diala provinces and was assigned to conduct security and training operations under the command of Task Force Band of Brothers, led initially by the 101st Airborne Division (Air Assault) and later 25th Infantry Division Headquartered out of FOB Warhorse. Later during the third deployment the unit was involved in the 2008 Battle of Sadr City. In March 2008 the 1st Brigade Combat Team deployed to Iraq and was stationed in Baghdad. The 1st Battalion, 66th Armor Regiment was detached from the brigade and attached to the 4th Brigade, 10th Mountain Division which was stationed at FOB Rustamiyah in Al Amin, Baghdad. The brigade returned home to Fort Hood, Texas in March 2009 and immediately began preparing for reassignment to Fort Carson, Colorado. In these three deployments to Iraq: 84 4ID/Task Force Ironhorse soldiers were killed in 2003–2004 235 4ID/Multi-National Division – Baghdad soldiers lost their lives in 2005–2006