Tallil Airbase, consisted of over 800 soldiers assigned to six companies/troops/batteries consisting of active and reserve components. Task Force 1st Squadron, 151st Cavalry Regiment conducted over 700 tactical convoy security missions, without losing a single soldier due to enemy activity. The task force was responsible for long haul fuel mission between Tallil Air Base, Logistical Base Sitz, Taji and Balad Air Base. Task Force 1st Squadron, 151st Cavalry Regiment suffered one non-combat related casualty when a soldier died while working on a vehicle in the motor pool. The Headquarters and Headquarters Battery, 1st Battalion, 206th Field Artillery Regiment was assigned to function as the Garrison Command Cell at Camp Taji, Iraq. The brigade combat team deputy commander, Colonel Kirk Van Pelt accompanied the 1st Battalion, 206th Field Artillery Regiment to Taji and acted as the garrison commander. The organic units of the 1st Battalion, 206th Field Artillery Regiment were attached to various battalions in the 1st Sustainment Brigade as convoy security companies. Batteries A and B and Company G, 39th Brigade Support Battalion were tasked to escort convoys of concrete barriers to Baghdad during the Siege of Sadr City. The "Clear, Hold, Build Concept" as it was employed in Sadr City involved cordoning several city blocks by emplacing concrete barriers around the area to be sealed off. These barriers weighed several tons each, so an entire convoy might move only 30–40 barriers. The convoy escort team would escort the civilian trucks hauling the barriers from Camp Taji or Camp Liberty to Sadr City, and then provide security on the site for up to six hours while cranes lifted and emplaced each barrier. These missions often came under small arms fire and the threat of improvised explosive devices was constant. The 1st Battalion, 206th Field Artillery Regiment suffered no killed in action during this second deployment, although Battery B had one killed in action from an attached Regular Army unit. Sergeant Jose Ulloa, of 515th Transportation Company was killed on 8 August 2008 went the MRAP that he was riding in was struck by an improvised explosive device during a convoy security mission in Sadr City, Baghdad. Sergeant Ulloa's platoon was attached to Battery B as a convoy security platoon at the time of his death. The brigade combat team redeployed to Camp Shelby, Mississippi in December 2008 and demobilized. Unlike the first deployment, the soldiers of the 39th were supported