[2] The 1–153rd has deployed companies in support of the Multi-National Security Force (SFOR 9) to Bosnia and to Saudi Arabia as part of Operation Southern Watch.

[6] The companies were attached to 3rd Squadron, 7 Cavalry Regiment, 3rd Infantry Division for the deployment as part of Task Force Eagle.

They performed presence patrols outside Forward Operating Base Morgan and Camp McGovern, and participated in the consolidation of weapon storage sites.

The battalion was required to complete a mission rehearsal exercise during the 2003 annual training conducted at Fort Chaffee, Arkansas.

Less than a month after the completion of this major training milestone, the battalion received its alert for deployment to Iraq in support of Operation Iraqi Freedom on 28 July 2003.

On 12 October 2003, the battalion, commanded by Lieutenant Colonel Kendall A. Penn, was ordered to federal service in support of Operation Iraqi Freedom II for a period of up to 18 months.

During consolidation of the 1st, 2nd and 3rd battalions 153rd Infantry for OIF II, efforts were made to maintain unit integrity at least the platoon level.

The convoy consisted of ten serials, totaling over 300 vehicles representing six of the 3rd Brigade Combat Team (BCT), 1st Cavalry Division task forces.

In January 2005, the task force responded to a vehicle borne improvised explosive device (VBIED) attack against the Supreme Council for Islamic Revolution of Iraq (SCIRI) headquarters.

Mr. Abdul Aziz Al-Hakim, the head of the party later thanked General Casey for the task force's quick response and assistance.

1-153rd IN captured six division targets and contained or disrupted fifteen Vehicle Borne Improvised Explosive Device (VBIED) attacks in their sector.

The 1–153rd commander, LTC Kendall Penn also worked closely with the Karahda District Counsel to oversee over six million dollars of infrastructure and community improvement projects in the battalion's area of operations.

Members of Company C, 1–153rd spent weeks fighting as part of TF 1–9th CAV, 3rd Brigade, 1st Cavalry Division on the hotly contested area of Haifa Street in Baghdad.

The mission of the 39th IBCT in Louisiana grew to the point that at one time the brigade was responsible for working with local officials in fourteen parishes.

In June 2006 the 1st Battalion, 153rd Infantry Regiment began deploying troops along the Southwest Border with Mexico as part of Operation Jump Start.

The 1st Battalion, 153rd Infantry Regiment and the 39th Brigade Combat Team received an alert for a second deployment in support of Operation Iraqi Freedom in April 2007.

The 1–153rd was placed in federal service in January 2008 and trained at Camp Shelby, Mississippi until it deployed beginning in March 2008 to Iraq.

The 1–153rd Infantry TOC acted as an area defense operations center for Camp Slayer, a part of the Victory Base Complex.

Soldiers assigned to 1–153rd Infantry executed 996 combat patrols in the area of operations surrounding Camp Slayer and captured six high-value targets.

A silver color metal and enamel device 1+1⁄8 inches (2.9 cm) in height overall consisting of a shield blazoned Azure, a bend wavy between a fleur-de-lis and a giant cactus Argent; on a chief of the last a Great Bear's face of the like fimbriated of the first, lips and tongue Gules.

The Great Bear's face from the shoulder sleeve insignia of the Alaskan Department symbolizes service in that area in World War II.

Blazon: Shield: Azure, a bend wavy between a fleur-de-lis and a giant cactus Argent; on a chief of the last a Great Bear's face of the like fimbriated of the first, lips and tongue Gules.

The Great Bear's face from the shoulder sleeve insignia of the Alaskan Department symbolizes service in that area in World War II.