Withdrawn on 1 April 1984 from the Army Reserve and allotted to the Regular Army, it was concurrently redesignated as Headquarters and Headquarters Battery, 3rd Battalion, 29th Field Artillery, assigned to the 4th Infantry Division and activated at Fort Carson, CO, with its organic elements concurrently constituted and activated.
They met little resistance during that initial push, however, and the brigade command began a reorganization of battalion Areas of Operation.
In addition to combat operations, the battalion established security for civilian infrastructure, provided training to Iraqi Civil Defense Forces (ICDC), and conducted community programs to educate the populace on the units mission and its commitment to bringing increased security and stability to the area.
In November 2005, Task Force Pacesetter deployed in support of Operation Iraqi Freedom 05–07 with the 3rd Heavy Brigade Combat Team, of the 4th Infantry Division.
Upon their arrival to the CENTOM Area of Operations, the 3rd HBCT fell under the 101st Airborne Division (Task Force Band of Brothers).
The majority of Task Force Pacesetter was based at LSA Anaconda at which they conducted Combat Patrols to minimize the insurgent activity in their Area of Operations.
Their efforts encompassed from Abyachi to Albu Hishma and Yethrib, over to Ad Dijual and their western areas up to 10 miles (16 km).
The Task Force eventually gave up their elements of 1–8 IN, and 2–9 Cav in June 2006, in support of other priority operations, along with CAT A5 B Co 404th Civil Affairs Battalion.
In August 2006, Task Force Pacesetter was moved under the operational control of the 3rd Brigade Combat Team, 101st Airborne Division due to the realignment of battle spaces and provinces.
In November 2006, Task Force Pacesetter redeployed to their home at Fort Carson, CO along with the rest of the 3rd Heavy Brigade Combat Team, 4th Infantry Division.
Task Force Pacesetter lost three of their number while deployed to Iraq this time: one to EFP, one to sniper fire, and one to combat vehicle rollover.