The battalion was reactivated on 4 August 1950 at MCB Camp Pendleton and were assigned to the 1st Marine Division.

In August they deployed to Kobe, Japan and fought in the war until the Korean Armistice Agreement was signed on 27 July 1953.

They participated in the following campaigns: Following the war the battalion remained in Korea and participated in the occupation of the Korean Demilitarized Zone from August 1953 until March 1955 when they relocated to MCB Camp Pendleton The battalion was relocated to the Marine Corps Air Ground Combat Center Twentynine Palms, California.

The 4th Battalion, 11th Marines was reactivated on 15 February 1979 at MCAGCC Twentynine Palms, California from units that had comprised the 1st Field Artillery Group.

During July and August 1994 the battalion helped fight major forest fires in the western United States.

During the 2003 invasion (OIF I), 5/11 participated on every major battle including the siege of Baghdad, Al Kut and Tikrit (Saddam Hussein's home town).

In 2010, Battery T, attached to 1st Marine Division's 1st MEF deployed to Camp Leatherneck, Helmand Province, Afghanistan.

[3] July 2014 to Nov 2014 Sierra Battery deployed with the mission to provide fire support and assist in the retrograde.