With the expansion of the Airborne force in Alaska from a single battalion (1st Battalion, 501st Infantry Regiment) at Fort Richardson, Alaska to a brigade 4th Brigade Combat Team (Airborne), 25th Infantry Division, the lineage of Company C, 509th PIB was again reactivated on 16 September 2005 as the 3d Battalion, 509th Infantry at Fort Richardson. The battalion deployed with the 4th BCT in support of Operation Iraqi Freedom in October 2006. The following is a media release from 10 November 2007, covering the battalion's work during OIF: