The battalion once again deployed to Southwest Asia from January 2003 to July 2003 to support the 1st Marine Expeditionary Force (I MEF) in Operation Iraqi Freedom. The battalion's timely and accurate fires proved to be crucial in allowing I MEF to quickly move deep into Iraqi territory and topple the regime in 21 days of major combat operations. Immediately following the fall of Baghdad, the battalion assumed the mission of a Provisional Infantry Battalion and begun assisting in civil/military duties as well as conducting Security and Stability Operation (SASO) patrols in the capital city, securing hospitals and other vital infrastructure.
