On March 26, Lt. Col. Christopher O’Melia was relieved as the commander of 1st Battalion, 4th Marine Regiment by Maj. Gen. Benjamin T. Watson, commanding general of the 1st Marine Division, ...

On Friday, 1st Battalion, 4th Marines will hold a redesignation ceremony at Camp Pendleton, California, so that the unit can become part of the 12th Littoral Combat Team, said Capt. Kristine Doan ...

Lt. Col. Christopher O'Melia, right, receives 1st Battalion, 4th Marines' colors during a change of command ceremony at Camp Pendleton, California, June 8, 2023. (Lance Cpl. Keegan Jones/Marine ...

Lt. Col. Christopher O’Melia was removed from command of the 1st Battalion, 4th Marines based at Camp Pendleton, Calif., on March 26, said Lt. Col. Lucas Burke, a spokesman for the 1st Marine ...

Starting in March 2003, 1st Battalion, 4th Marines was part of the invasion of Iraq, fighting at Nasiriyah, Al Kut and Bagdad. The unit returned to Iraq in May 2004 and fought insurgents at Najaf.