 Several active duty units were attached to the 1st Battalion to form "Task Force Nightstalker" under the command of the battalion HQ, including one company of M1A1 Abrams tanks from the 4th Battalion, 64th Armor Regiment.The battalion's Charlie company was temporarily assigned to provide security at the Convention Center in the Green Zone during the 16 March first meeting of the transitional National Assembly that was elected on 30 January, assuming control of the Convention Center from a company of the 2d Battalion, 325th Infantry Regiment and relinquishing control less than two months later to the 13th "Shavnabada" Infantry Battalion from the Republic of Georgia.The battalion provided security during the constitutional referendum held on 15 October and the election of the Council of Representatives on 15 December.